Breakheart Pass is a 1975 western thriller film directed by Tom Gries and based on the 1974 novel of the same name by Alistair MacLean. The movie stars Charles Bronson, Ben Johnson, Richard Crenna, and Jill Ireland.
The plot of the movie revolves around a train that is traveling through the Rocky Mountains to a remote army post. The train is carrying a classified cargo that is critical to the army's mission. However, the passengers on the train are being murdered one by one, raising suspicions that one of the passengers is a spy who aims to steal the cargo.
Among the passengers is John Deakin, a notorious outlaw being transported to face trial for murder. Deakin is initially suspected of being the killer but eventually proves his innocence and sets out to catch the real culprit.
As the train continues its journey, tension and suspicion among the passengers grow, with each wondering if the others can be trusted. The film features several action-packed scenes, including a high-speed train chase and a shootout between the passengers and a group of Native Americans.
Breakheart Pass received mixed reviews upon its release. However, it has since gained a cult following among fans of westerns and action movies. The film is noted for its suspenseful plot, stunning cinematography of the Rocky Mountains, and the performances of its cast, particularly Charles Bronson's portrayal of John Deakin.