Pitt plays James Belmont, a former Army Special Forces soldier who must find a way to return to civilization after his small plane crashes deep in the Alaskan wilderness. Joined by a retired service dog named Odin, who protects him from bears, wolves and other beasts, Pitt’s character battles the elements and embarks on a desperate attempt to stay alive, climbing mountains and crossing rivers.

“It’s not the size of the dog in the fight that matters, it’s the size of the fight in the dog,” Pitt says in the trailer, promising the canine: “I’m going to get you home. We just have to do this the hard way.”

Oscar winner J.K. Simmons and Anna Lambe are set to appear alongside Pitt, who also serves as a producer with Olivia Hamilton and Marty Bowen alongside director David Ayer.

The project reunites Pitt and Ayer for the first time since Fury, their 2014 World War II epic for Sony, and comes following Pitt’s starring role in the Oscar-nominated “F1.” “Heart of the Beast” was written by Cameron Alexander and executive produced by Alexander, Damien Chazelle, Scott Lumpkin, Chris Long, Pete Chiappetta, Anthony Tittanegro, Andrew Lary, Sophie Cassidy and Zack Conroy.

The action thriller was created with Domain Entertainment and Gulfstream Pictures and is a Wild Chickens, Temple Hill, Kino World Production.

“Heart of the Beast” is in theaters September 25.

Watch the trailer below.