There’s a moment in the new trailer for Heart of the Beast that tells you everything about what kind of movie David Ayer is making. Brad Pitt, playing a Special Forces officer named James Belmont, is stranded in the Alaskan wilderness after a plane crash. He’s studying a map, trying to calculate the distance to the nearest sign of civilization, when the realization hits him. “Nobody’s coming to find us,” he says. The line lands with the weight of someone who’s spent his life being rescued by teams and protocols, and now understands that none of that applies here. There’s no extraction coming. No backup. No plan. Just him, his combat dog Odin, and hundreds of miles of terrain that doesn’t care whether they live or die.
Paramount has released the new trailer for Heart of the Beast, and it’s clear this is a different kind of survival thriller. Not a story about a man fighting nature alone, but a story about two veterans—one human, one canine—who have to keep saving each other. The bond between Belmont and Odin isn’t just emotional window dressing. It’s the engine of the entire film.
Heart of the Beast Trailer: The Setup
Belmont is an officer in the Special Forces, and Odin is his K-9 partner—a highly trained combat dog who’s seen as much action as his handler. The film opens with Belmont trying to give Odin a different kind of life. He wants to take the dog away from the world of violence and service, to offer him something quieter. The trip to Alaska is supposed to be the beginning of that new chapter.
Then the plane crashes. In the water. And from that moment on, the survival story begins in earnest. Odin pulls Belmont from the wreckage and gets him to shore. The dog’s training kicks in immediately—this isn’t a pet who happens to be along for the ride. This is a soldier who’s been through worse, and the film makes clear that Odin’s competence is as essential to their survival as Belmont’s own skills.
The trailer shows the two of them making their way through some of the most unforgiving terrain on the planet. The cold. The rivers. The wildlife. The sheer distance from anything resembling help. And then there’s the moment that’s going to have audiences gripping their seats: the two of them crossing a fallen tree over a river, Odin’s front leg already in a splint, both of them losing their balance. Belmont manages to push the dog to safety but falls into the water himself. Odin, injured but still capable, has to save him again.
The Promise
The emotional core of the film is captured in a single line from the trailer. Belmont, looking at his injured dog, makes a promise: “I’ll get you home.” It’s the kind of line that could easily tip into sentimentality, but Pitt delivers it with the matter-of-fact determination of someone who’s made promises like this before and kept them. This isn’t a man who’s going to let his dog die. And Odin, based on everything the trailer shows, isn’t going to let his human die either.
David Ayer has been adamant about one thing in the lead-up to release: the dog lives. For audiences who’ve been burned by survival movies where the animal companion doesn’t make it, this is essential information. Heart of the Beast isn’t going to end with a gut-wrenching dog death. It’s going to end with the two of them making it home, or at least with the promise that they will. That knowledge changes how you watch the trailer. The tension isn’t about whether Odin survives. It’s about what they have to go through to get there.
The Reunion
This is the first time Pitt and Ayer have worked together since Fury in 2014. That film, set in the final months of World War II, put Pitt in command of a tank crew facing impossible odds. It was a brutal, claustrophobic movie about men pushed to their limits, and it grossed over $212 million worldwide. Ayer has spent his career making films about characters under extreme pressure—from the corruption of Training Day, which he wrote, to the street-level intensity of End of Watch to the comic book chaos of Suicide Squad. Heart of the Beast strips away the social structures that usually define his work. There’s no chain of command here. No backup. No enemy except the environment itself.
Pitt is coming off the massive success of F1, which earned over $634 million worldwide. That film was a spectacle built on speed and the roar of engines. Heart of the Beast is something different—smaller in scale but potentially more demanding physically. The trailer suggests a performance built on endurance rather than charisma. Belmont is a man who’s been trained for combat but now has to apply that training in a context where none of the usual rules apply. He can’t negotiate with the cold. He can’t outmaneuver a river. He can only keep moving, keep protecting Odin, keep pushing toward a goal that seems impossibly distant.
The Cast
J.K. Simmons and Anna Lambe round out the principal cast, though everything in the trailer suggests that the bulk of the film rests on Pitt’s shoulders—and, of course, on the dog playing Odin. Animal performances are notoriously difficult, but the footage released so far suggests the bond between actor and canine is convincing. That’s essential. If the relationship doesn’t work, the whole movie collapses. If it does, Heart of the Beast could be the rare survival thriller that earns its emotional weight honestly.
The screenplay is by Cameron Alexander. The producing team includes Pitt, Olivia Hamilton, Marty Bowen, and Ayer, with Damien Chazelle among the executive producers. The involvement of Chazelle—a filmmaker whose work has always been interested in the collision between ambition and physical limitation—is an intriguing footnote. This isn’t his movie, but his presence in the production suggests a level of creative investment that goes beyond the typical star vehicle.
The Release Date
Heart of the Beast hits theaters September 25, 2026. It’s a fall release for a film that seems designed to play as counter-programming to the blockbuster season—smaller, more intimate, built on performance and landscape rather than spectacle. But the trailer makes clear that the landscapes are spectacular in their own right. Alaska, as filmed here, looks both beautiful and utterly indifferent to human presence. The cold is a character. The rivers are a character. The forest is a character. And through it all, two figures move: a man and his dog, bound by training and loyalty and a promise that neither of them is willing to break.
Fury ended with Pitt’s character making a stand that seemed suicidal. Heart of the Beast seems to be asking a different kind of question: what does survival look like when you’re not a soldier anymore, when the only person counting on you is a dog, and when the only way forward is to keep putting one foot in front of the other? The answer, based on the trailer, is simple. You survive. You get home. You keep your promises. Everything else is just weather.