Adapting the Alan Moore run, particularly the story focused on Swamp Thing making war on Gotham, leading into Justice League Dark. I think he teams with Poison Ivy, allowing him to draw a line by the end where he doesn’t agree with Bats, but knows Ivy’s so committed to plant life that she’d kill all the animals, too, and that’s too far (if we’re careful, setting her up for an eventual face turn later). We’ll also use this as a backdoor pilot for Constantine, and work Zatanna into it as a conduit between Batman and Constantine, trying to negotiate a peace. In part, this should feel like a disaster/alien invasion movie, with Bats and Zatanna researching possible scientific or magical means of ending the conflict, while the plantlife under Ivy’s control is largely a force of nature unto itself.
We open on the Wayne Green Initiative, an internal environmental science group within Wayne Industries; they have a dual mandate, researching green technology breakthroughs while also providing autonomous oversight to Wayne’s industrial divisions. Its director, Jason Woodrue, is young, handsome and charismatic. Most of the women in the office seem charmed by him, but not Pamela Isley. She values brains and ethics over clout- and she has it bad for Alec Holland. He’s a researcher from Louisiana, doing research on the restorative properties of certain kinds of plantlife. Pam’s research is more dealing with plant interactions with hormones, pheromones and attraction; she posits that there’s more to giving flowers than meets the eye- that plants are working on humans on a more subtle level than that- her work is proving the underlying chemical reaction. She’s also got a dual doctorate in plant toxicology.
A coworker brings Pam flowers; it’s completely inappropriate, but what she really objects to is that they were cut. “Would you bring an equestrian Mr. Ed’s severed head? Would you bring a dog lover Lassie’s excised tail?” She’s also annoyed at the unwanted workplace advance, but it’s filtered through her moral outrage. We see her apologizing to the flowers as he walks away.
He’s concerned Alec, who shares lab space with her, saw what transpired, and to save face tells him, “Watch out for that one- she’s a man eater.” He goes on to tell him she’s been through most of the staff, that most are haunted by the experience, that she’s the real reason Gary transferred. Alec says he thought Gary’s mother was sick, and the coworker- it might save time to make it Jason, is skeptical. Alec is mostly still disinterested- science is his first love. We montage our way through the day, and in time-lapse watch as every other lab and office is deserted, save Pam and Alec’s. We see an unknown man strolling through the halls, dumping a can of gasoline. We watch as the electronic locks go from displaying a green light to a red one, and hear the thunk of them locking; the noise is surprising enough for Alec to finally look up from his work. Pamela catches his attention, and smiles at him.
We see from her POV, as her vision lights up and she sees Alec framed by flames, and she lets out a breathy, “Wow.” Alec sees the same- only he doesn’t mistake it for an Ally McBealian daydream, and springs from his chair to tell her there’s a fire. They try the doors, try the suppression system, try the phones- nothing’s working.
“Someone sprung a trap for us,” he says. That’s when the valves to the chemicals and tissue samples start to open, flooding the floor with chemicals, and the air with green mist. They’re both terrified, and say that in these concentrations their research materials are toxic. Alec tries to throw a chair through the glass, but it rebounds with a thud. Alec sees the hood vent over Pam’s station, and asks if she thinks she can fit through there (it needs to be just big enough to accommodate her, but not him). Alec tears down the hood, which is basically a bunch of sheet metal, bloodying up his hands.
She doesn’t want to leave him, and he tells her she isn’t- she’s going for help. She kisses him as the music swells. He gives her a boost into the vent and she shimmies away. Alec goes to his desk and pulls out a bottle of champagne and two glasses. We see a framed picture of Abby Arcane in the drawer where they’d been, a striking woman with white hair with a black streak in it (we can reverse those if it’s hard to make look realistic). We match cut to Abby, only instead of smiling, she’s sad. We pull out, through the ring Alec is holding out to her, as she says, “Alec, I can’t,” with dreamlike reverb. She gets up and runs away, disappearing into the green of the wooded swampland.
We cut back to the lab. The smoke now is so thick we can scarcely see through it, but we can make out the opened champagne bottle on the desk, and one spilled glass of champagne. We follow that trail to Alec, face down in the chemicals, and in his open hand, the ring.
We cut away, to a man knocking on a door. A blonde brit in a trench coat, smoking like a chimney. A young psychic woman in New York opens the door into her condo. On her easel is a horrific drawing of a creature that was once a man. “Looks to be the thing that was keeping Benjy up,” Constantine mutters. “Coarse, he thought it was Cthulhu and Elder Gods coming back. Judith thought it was Elvis, or maybe Elvis by way of aliens. The only bleeding thing every psychic in America can agree on is it’s coming. I haven’t bothered with Sister Anne Marie- she’ll tell me it’s Jesus and to get my affairs in order.”
She starts sketching, filling in details of a classic Swamp Thing cover, but dancing around the central figure, leaving him as a silhouette. She tells him the others were lacking for one thing: inspiration. She tackles him to the ground with a kiss. We cut to the aftermath of their romp, John putting back on his shirt. “But is he the one we need?” John asks. She doesn’t think he knows what he’s growing into- so she really can’t say. But what she can tell him is where it’s happening- Louisiana- and that it’s starting right now.
Cut to Alec in a black void, naked and curled in the fetal position, kind of echoing the void in Under the Skin. “Alec?” we hear in a woman’s dreamy sing-song.
“That’s a nice name,” we hear from a voice nearer by. “I’m Dead. Man.” Alec doesn’t look up, but Dead Man is kneeling beside him, chattering. “Also dead. Not like you. You’re only mostly dead. Pre-dead. Nearly. Apparently you’ve still got work to do, but no mortal coil to shuffle back to. Hmm. Anyway, I get this sinking impression we’ll be meeting again. You can call me Boston, by the way, or Brand if you’re nasty.”
“Alec?” this time it’s even more melodic and drawn out, and Alec sits up; Dead Man is gone. “There you are,” the voice is full of warmth and affection; it’s Pam, but also, it seems to be emanating, visualized with green ripples, from a solitary red rose that is growing, with tendrils of ivy reaching out from its base. Subtly, as the scene goes on, the black void takes on a green hue; we’ll also be filling the space wall to wall with plant life. As she speaks, the rose grows larger, until Poison Ivy, in all of her splendor, including clothes grown out of ivy and moss, steps out of it. By that point, the plant life has spread, revealing that it’s not so much a dark room, as an endless overgrown forest. “I was sorry I couldn’t save you. I tried. But I didn’t even really save myself… but when I woke up, I could hear you. I thought I was going mad; a not-improbable side effect of the chemical exposure. But it was you.” She embraces him, and their world is engulfed in green light. And suddenly we’re back in the real world, with Ivy holding the Swamp Thing. “Welcome back, Alec.”
“Back?” he asks in a halting, inhuman voice, taking a step back from her. He sees the crude approximation of a body he’s suddenly in, formed from vines and muck. “What am I?” She tells him he’s so much more than a man, and encourages him to feel the green- the collective voice of the plant world around him. She tells him they are those plants’ hands- and their righteous fury. While searching for him she dug through their files. Some of Wayne Tech’s divisions are producing more pollution than they’re supposed to, a lot more. Rather than clean up their act- Wayne Industries decided to take care of the watchers. She holds up her phone and thumbs through story after story of Wayne Industries and chemical spills, environmental fines. She tells him she thinks they’re back for a reason.
“And I think she’s barmy,” Constantine says from the darkness, before he’s lit by a match and then the cigarette he lights with it. He tells them if he was resurrected mysteriously his first act wouldn’t be to lash out at an entity maybe tangentially related to his death or figuring out the fastest route to becoming plant Hitler. “But I can tell you what you really are.”
“No,” Ivy says, “he can’t. Because he doesn’t know you. You’re Alec Holland. And that’s all that matters.” He’s swayed by Ivy for the moment, who’s familiar, kind, beautiful, and feels almost like a part of him. Constantine protests, says he could stop them in a way that is at least plausibly threatening to her. Swamp Thing reacts on instinct, spinning towards Constantine, who is seized by vines and branches, one in particular tightening around his throat. Alec is surprised at himself, and turns away from Constantine, as the branches and vines release him.
Constantine takes one last drag from his cigarette before stubbing it out on a nearby tree, and saying, “Bollocks,” in the darkness.
Cut to a hotel room. We see new chopper footage of a dam being destroyed by vines, tearing a large “W” symbol in half, and its reservoir flooding onto the science buildings below. “Unfortunately, the Batman was nowhere to be seen as ecoterrorists destroyed the Wayne Industries facility with quick-growing plantlife.” I think that’s the point the sound gets slowly drained away with the remote, but here’s the rest of the dialog, which can be subtitled on the TV even as it mutes. “The facility, once infamous for chemical spills and safety violations, has turned its record around in recent years thanks to the personal involvement of CEO Bruce Wayne, who oversaw an overhaul of executive staff…”
Alec is pouting under all his Swamp Thing makeup. “People could have been hurt,” he complains. Ivy soothes, a little too aggressively sexual, but says that she compromised, and they gave the staff hours to clear out.
“You don’t have to be this,” he says.
“Be what?” she asks angrily.
“You’re beautiful. Kind. Intelligent. You don’t have to be, uh-”
“Oh,” she says, and laughs bitterly, “those rumors. You know Jason starts them about any woman who doesn’t sleep with him- which since most of us have figured that out, is basically everyone. But that’s also beside the point. If I want to throw you down on the bed and have my way with you,” she pushes him back onto the bed, “I should have as much right as you to express that. Though right now I don’t even want to look at you.”
From the bed, he can see himself in the bathroom mirror. “I know. I’m hideous.”
“No. Because you’re being an asshole.” She lays between him and his reflection, and strokes his face. “You’re beautiful. You have a beautiful mind, a beautiful body, and a beautiful soul. You just can’t let men like Jason Woodrue pollute you. Just like we can’t let people like Wayne pollute this beautiful green world we have.”
“Let’s do it,” he says, a bit more animated, and her eyes light up. “Let’s hit another Wayne facility.” She’s maybe a little disappointed that it wasn’t her that piqued his interest, but she also wants that, so it’s not a huge loss, either. She tells him she’ll be out in a moment.
Swamp Thing steps outside as she disappears into the bathroom. “Using the facilities,” Constantine says, lighting another cigarette from behind him. “Curious how you haven’t needed anything. Not the bathroom. Not food.”
“You say you know about me. I think you want to control me.”
“Like she isn’t?” Constantine stares at him for a long moment. “I’ll tell you one thing. This,” he jabs Swamp Thing in the chest with two fingers holding a cigarette, “isn’t you. It’s a borrowed car you’re driving, nothing more. You could borrow another, half the world away, or decide to drive something… more impressive.” Constantine flicks his cigarette as Swamp Thing spins towards the door as Ivy exits.
“Talking to yourself?” she asks.
“Just considering possibilities…” She puts her arms around him, saying she likes the sound of that. He guarantees she will.
We’re in a production plant. A pair of guards are on extra alert, after what happened to the dam. The coffee in one of their cups shakes, and he asks the other guard if he heard that. He didn’t. Outside, we see the trees around the facility shake. They’re shaking in a line- something is coming, something big. A Swamp Thing stories tall smashes his way through a ten foot high electrified fence, sending a shower of sparks across the parking lot. Then it walks to a transformer in the parking lot and tears it out of the ground, and tosses it through the front doors. Back inside, one of the guards shoves the other out of the way as the transformer caves in the entrance. The extra large Swamp Thing falls into the parking lot, and Ivy climbs off it, while a normal sized Swamp Thing grows out of its scalp. They walk past the two guards in the entrance, cowering.
Cut to deeper inside the facility, Ivy kicks a guard in the stomach, and he collapse against the wall, smacking his head and falling to the floor. Swamp thing tendrils a security guard, then broods. “This isn’t like last time.”
“No,” Ivy agrees, but she’s kind of having a fun time with it, growing a potted fern into another guard, “this time they’re resisting.”
He grabs her hand. “I don’t like hurting people.”
“Are you sure they even think you’re people?” she asks. There are several gunshots through him, and we get close up on the holes as they close automatically. Swamp Thing tendrils the guard who shot him as he runs away. “Because he just shot you in the back, yet here we are, pulling our punches.”
“I didn’t say it isn’t necessary,” he menaces, “but that doesn’t mean I have to like it.”
“Maybe we should start there,” Batman says, swaggering out of the shadows wearing a gas mask. “Exactly why is this necessary?” The room fills with mist, a mist that has defoliating agents in it and visibly weakens both Ivy and Swamp Thing. Batman has a fancy-looking ‘gun’ that’s basically just a high tech bottle of weed-killer. “The only reason we’re talking is that you’ve been pulling those punches. But I’m not convinced either of you are people, either; if a big dose of weed killer would kill you, maybe we’d have our answer.”
Suddenly, a vine tears Batman’s weapon away, and we find out that while Swamp Thing is reasonably weakened by the defoliant, Ivy is not. “I wonder what it would do to you,” she says, as still more vines seize Batman’s limbs and tear away his gas mask. This Batman is looking a little ragged; not to get ahead of ourselves, but he was out of town researching, and had to fly back, so he’s been up 48 hours at this point. The vine with the poison menaces him, as Ivy talks about the ability of plants to leach toxins out of the air. It sounds like she’s wrapping up, and is going to spray all of the poison down Batman’s throat when Alec protests, barely able to hold himself off the ground.
“He defends the status quo. That means everyone who’s powerless, remains powerless, and everyone who’s exploited- including the green world that speaks through us- remains in chains.”
A door that has been in the back of the scene kicks open with surprising force, ruffling Constantine’s trench coat as he lights a cigarette, and blowing the defoliant away. “Still raving like a nutter,” Constantine says, walking into the room, he pauses noticing Batman, “though, when in Rome…”
“Thank you,” Alec coughs, finally strong enough to stand back up.
“Come with me. I’ll tell you what you are, and why the rest of us need you in fighting shape and not wheezing on the floor here.” While Swamp Thing is distracted with Constantine, Ivy gets in too close to Batman.
“Freeze countermeasure gamma,” Batman says. Panels in his gauntlets and boots heat up and start to glow red, singing the plants enough to free him, and he headbutts her, before using the underside of the fins on his gauntlets to cut the vines. Attacking the plant seems to hurt Ivy, which demands that Swamp Thing rescue her and flee. Constantine turns towards Batman, reluctantly preparing to propose an alliance- to discover he’s gone.
Constantine says, “That’s rude.” More guards arrive, and try to cuff him at gunpoint. He ignores their demands, and opens the door he entered through. The guards tell him it’s a maintenance closet, and we can see it’s no wider than the door and no deeper than a man. “I know. I just need to borrow it. Wont’ be a second.” He closes the door, and when the guards open it he’s gone.
Similar to the scene earlier with Constantine knocking on a door, only this one is a red door with a gold star and the name, “Zatanna” painted on it. She opens the door and smiles, in her hat and coattails performing/heroing outfit. “John!” she says, pulling Constantine inside and hugging him. “It’s been too long- which probably means something horrible’s in the offing.”
“Right you are. And you’ve contacts in the charge of the tight brigade, and I thought…”
“Who do you need an introduction for?”
“The one in Gotham.”
“Oh, um,” she’s most of the way to blushing.
“That a problem?”
“No, I just… didn’t expect it to be someone I was so intimately familiar with.”
“Oh, um…”
“I didn’t mean it like that,” she protests a little too eagerly. “He trained in the escape arts with my dad.”
“But no proper magic.”
“No. He didn’t like power he couldn’t wrap his head around. I think that’s why he can’t keep a woman around… something the two of you might have in common.”
We cut to profile, as they’re preparing to exit via her dressing room door. “You’re ready?” she asks.
“The enemy of my frenemy is a prat in long underpants.”
“Play nice, John. If push comes to shove you’re the one intruding on him, so if I’m forced to take sides, it won’t be yours. Rood ot evactaB”
She opens her dressing room door, only now it’s opening up into the Batcave. Batman’s voice echoes off the walls. “I don’t like it when you come here unannounced.”
“Can the theatrics; dad taught us both most of the same tricks.”
“Don’t think they were for your benefit, love,” Constantine says.
Batman makes himself seen, then turns, leading them into his labs. We see several beakers with lengths of the vines he collected earlier in them. Most of the vines look pristine, and have numbered labels on them, save the last that’s black and shriveled. “What are you planning?” Constantine asks. Batman looks tensely at him.
“You can trust him; I vouch for him.” He relaxes somewhat.
“I’ve found a compound that should work even against Poison Ivy.”
“That’s not her name,” Constantine protests. “It’s-”
“Dr. Pamela Isley. Unfortunately I hadn’t gotten the fingerprint match back, or I might have been better prepared for her.”
“And less flippant about their humanity?”
They glare at each other a moment. “She’s calling herself Ivy, now.” Batman displays notes left at their last two break ins, signed by Poison Ivy. “DNA is no longer remotely a match for Dr. Isley, though the remaining human chromosomes are; she seems capable of introducing plant DNA into her physiology; and of course you saw the control she has over plants. That’s why I needed samples from that vine. If my defoliant works on it, maybe it has a chance of slowing her down, too. But I’ve been watching footage of the dam. He can grow himself a new body, over a range of at least a mile. I think I need to spray defoliant over a five mile radius, to make sure they can’t get away.”
“You kill every plant in a five mile radius, you won’t need to worry about that- you’ll need to worry about picking out a plot.”
“He isn’t Alec Holland. I checked the reports. Holland’s body was found at the scene. But still, I did my due diligence. Checked this swamp thing’s fingerprints, compared its DNA. There isn’t any part of Alec Holland in it. It’s in no way human.”
“It thinks it’s Alec Holland,” Constantine argues. “It thinks it’s human. Of their little Bonnie & Clyde road show, he’s been the voice of compassion. Maybe he’s not technically human, but does that give us an excuse to be inhumane?” Batman balls his fist, on the verge of taking a swing at Constantine.
Zatanna puts a hand on Batman’s shoulder. “Don’t,” she says. “He’s not wrong, and you know it.” His fist unclenches.
“What do you need?” Batman asks.
“I need you to get him away from Green Thumb Barbie long enough for me to talk sense into him.”
“And if you can’t?”
“Then the world probably ends in a screaming ball of agony.” Batman’s eyes narrow. “But we can discuss that later.”
“We’re definitely going to need to.”
Cut to Ivy and Swamp Thing in a chemical treatment plant. He’s concerned, and wants to make sure they don’t hurt anyone. She’s a little dismissive, but makes it sound like she’s honoring his wishes. Part one of their plan is introducing her growth hormone into the water supply, which should counteract Batman’s defoliant and protect not just them but all the plants in Gotham. Then they meet up to execute part 2, but first they need to empty the right amounts in 2 different reservoirs.
After Alec leaves, we see Ivy add something poisonous to her formula, and is about to add it to the reservoir when Batman arrives.
“That isn’t what he wants,” Batman says from behind her. “I don’t think it’s what you want, either, Pamela.”
“Pamela’s dead,” she says.
“No. Alec died. You survived. Metamorphosized, perhaps, but alive. But I know who tried to kill you.”
“Jason Woodrue,” she says.
“Yes. Strangely, his fingerprints match those of a man who disappeared in the 70s- he was fingerprinted in relation to disappearances, lab assistants and colleagues had a way of disappearing around him. The match doesn’t makes sense. That Woodrue would be over 90 if he were still alive. And Wayne subsidiaries fingerprint employees for background checks; Jason Woodrue’s fingerprints on file with Wayne were different. So either there are 2 Jason Woodrues, or one who can change his fingerprints and appearance. Woodrue may have disappeared, but if anyone can help you find him, help you get closure, it’s me.”
“That is curious,” she says, the last word coming out as steam. “As is that. You lowered the temperature. You’re trying to convince the plants in this reservoir it’s winter, so they’re more sluggish. I never pegged you for a man of science.”
“I dabble,” he says, ducking a vine that swings over him.
We cut to Swamp Thing, at the other reservoir, “You don’t want to do that,” Constantine says from behind him.
“I’m just protecting my own,” he says.
“No. Ivy wants you severed from humanity. She wants you to herself. She’s put poison in that vial, in hopes that once you’re a murderer, you’ll need her all the more.”
“The green speaks to me. It requires an avatar.”
“Right it does, sunshine. But it also requires the rest of it to work, the spinning rock, the big puddles, even needs the chimps flinging dung to propagate.”
“You mean to say the world is threatened.”
“I’m not sure we’re limited to just the one globe, but that’s about the shape of it, yeah.”
“And you say there’s more than Ivy’s growth hormone in this vial?” Constantine nods. “Prove it.”
“I’m pretty sure whatever’s in that vial would kill me at that concentration, so I don’t know how.”
“With a lab, obviously; I don’t expect you to do it now.” He hands Constantine the vial.
“Batman’s with Ivy. He promised to leave on the kidd gloves, though I suspect that’s to the side of things. You know she’s still human. There’s rules about killing them. Plants? You stick it in the bin and it’s like you never had a ficus.”
“That’s macabre.”
Now’s the big fireworks show finale, Ivy and Batman duking it out. She’s more capable than he hoped, he’s using everything at his disposal just to keep her at bay and talking. Eventually he gains the upper hand, maybe injecting her with a massive amount of horse tranquilizer, and telling her she’s only 15% biologically human, otherwise it would probably kill her, but plant parts of her should be immune. Then he says, “I know Jason Woodrue wasn’t the first man who hurt you. He likely won’t even be the last. But you didn’t deserve what happened. Everything I’ve seen tells me you’re a good person, put in a difficult, even impossible position. I want to help. We’ve all done things to be sorry for. But please, Pamela, let me help.”
“You can’t,” she says, defeated, and we see for the first time how traumatized she’s been by everything that’s happened. “I’m sure you’re loaded. That private plane of yours must have cost as much as a city. But we’re not talking about problems that can be fixed- not even with millions of dollars. You need billions, to start, and infrastructure, and-” she turns to see he’s removed his mask, and a smile crosses her lips as she recognizes him. “And Mr. Wayne, I think we just might be able to change the world together.”
We cut back to Constantine and Swamp Thing, walking out of the reservoir. They’re met by Batman and Ivy, her hurrying because she’s afraid he’s poisoned the reservoir. She runs towards them when she sees him, and asks, “You didn’t?” Constantine holds up the vial. “Thank God. Alec, I’m so,” he puts his finger to her lips.
“I know. But I think I need… something else. You helped me. And I’ll always owe you a debt for that. But I think we’ve become toxic for one another. And we both deserve to be happy.”
“Yeah. We do.” She kisses him. “So go be happy.”
“And what about you?”
“I think I need to do some work on myself. It’s not healthy for me to be this volatile; a friend told me they have a very compassionate outpatient program at Arkham, administered by Dr. Quinzel. And I need to stop judging based on first impressions,” she gives a glance back in Batman’s direction.
“I hope that will make you happy, Pamela. You, too, deserve to be.”
“I think it will. But what might help is some closure.” She turns to Constantine. “You’ve been promising to tell us what we are. So?”
“He’s a plant elemental. As far as I can see, you are a science experiment gone wrong.”
“But I can talk to the green.”
“Maybe. Or maybe you talk to plants, and he’s a big dumb ficus who can talk to the green without even thinking about it. Really it’s potato, poh-tah-toe, because he came back through plant magic, and you didn’t.”
“That doesn’t change anything,” Alec soothes. “You’re still Ivy.”
“Pamela,” she says. “I think I’m going to try to just be Pamela for a while, first.” To credits.
Mid-Credits Scene: Stunned silence, lasting a good ten seconds, as Batman, Ivy and Swamp Thing stare at Constantine. “I should be dropping all of you off at Arkham,” Batman says.
“Can’t be any worse than Ravenscar,” Constantine quips.
“So the world is going to end…” Ivy says.
“No. The world is trying to end. Isn’t it always?” he asks Batman, for some reason expecting a game answer and not the silence he receives. “I’ve spent all this time and aggravation because we need your big dumb ficus to help stop it.”
“He has a name- Alec.” Ivy says.
“I’m not sure I still feel like an Alec. I think I may be more comfortable considering myself a-”
We do the cutesy thing where we cut to a title card for Swamp Thing, then add text, “Will return in Justice League: Dark.” More credits.
Another Mid-Credits Scene: We pan slowly around Ivy in an evaluation room. It’s a little dingy and worse for wear, but nowhere near the hellscape Arkham eventually becomes. The doctor, mostly off camera, rattles off her impressive list of credentials and research projects, especially proud of her work with metahumans and those with nonhuman physiology. She also mentions that in preparation for treating her, she read her work, and was impressed. “You really care about the environment, and plants in particular. You don’t see that kind of passion often, particularly not outside these walls. Other therapists might try to extinguish that flame, but I think that fire is part of what makes you unique, Pamela. I want to work with you on channeling it in healthy directions.” We finally reveal a pre-crime Harley Quinn sitting opposite her, preparing to examine her. “Don’t think of this as a search for a cure; I want to help you develop the skills and coping techniques it takes for you to heal yourself.”
Post-Credits Scene: Batman arrives in Louisiana. We see some swampland, then Batman landing a harrier-style jet on it. He walks inside a home in the middle of nowhere. “Ms. Arcane, I have some… news about your fiancé.”
“Alec’s dead. Believe it or not we still get Google out here. And even before he got dead, he was just an ex- I never said yes.”
“He said you were on a break. And you would, eventually.”
That gives her pause. “So you really did know Alec. I’m not surprised he met some strange friends in a city like Gotham.”
“I do know him. He’s still alive. And if you’re willing, he’d like to see you. Though to warn you, he’s been through some changes…” We can see Swamp Thing’s giant silhouette in the doorframe behind Batman, before we cut to black.