Into the Grizzly Maze (originally titled Red Machine, then changed to Endangered and later to Grizzly) is a 2015 American action horror-thriller film directed by David Hackl from a screenplay by Guy Moshe and Jack Reher. It stars James Marsden, Thomas Jane, Piper Perabo, Scott Glenn, and Billy Bob Thornton. The plot follows two estranged brothers as they reunite at their childhood home in the Alaskan wilderness. The pair are then led to the Grizzly Maze, where they are stalked by a massive, unrelenting, and bloodthirsty grizzly bear. The film was released on video on demand on May 19, 2015, before a limited release on June 26, 2015.