Dermot Mulroney is trading Chicago for the wild West in Long Shadows, and ScreenRant has an exclusive look at the first trailer for the project. William Shockley, who is best known for playing Hank Lawson in the long-running Dr. Quinn, Medicine Woman, is making his directorial debut — adding a sense of authenticity to the proceedings. The film arrives in theaters on September 26 after Quiver Distribution acquired the North American distribution rights.

Mulroney, who has been warming up television screens since becoming Chicago Fire's new chief in 2024, is trying on a new hat as an outlaw in the genre film. He is joined by young Blaine Maye (Joe Bell), Jacqueline Bisset (Bullitt), and Dominic Monaghan (The Lord of the Rings), who round out the ensemble cast. Long Shadows follows Marcus Dollar (Maye), who is on a quest for revenge against the horse thieves who killed his parents. Mulroney's Dallas Garrett is along for the ride, teaching Marcus how to aim, among other necessary survival skills.