Breakheart Pass (1975)

Amidst the biting cold of the Rocky Mountains, an express train slices through the frozen West with a mission of utmost urgency. Its destination: Fort Humboldt, a garrison besieged by a sudden onslaught of diphtheria. Onboard are a motley crew of passengers, each with their own agendas. The steadfast Governor Richard Fairchild, who safeguards the commander's daughter, Marica, the gallant Major Claremont, and the astute Marshal Pearce, whose eyes never leave his enigmatic captive, the dreaded outlaw, John Deakin. Their cargo: a battalion of reinforcement troops and a lifeline of medical supplies. However, the train's ironclad exterior conceals a world riddled with secrets and deception. As the journey unfolds, a series of inexplicable deaths and vanishing officers cast a long, ominous shadow over the mission. An unseen menace lurks within the confines of the rattling carriages, transforming the train into a moving fortress of tension and suspicion. The sinister whispers of a dark conspiracy begin to echo through the corridors, and it becomes chillingly apparent that nothing and no one aboard this train is as it seems. In the heart of this swirling vortex of mystery, one question surges above the rest: who among them possesses the courage and cunning to unmask the invisible killer and expose the terrible truth? As the express train thunders towards its destination, it's a race against time to reveal the face of the hidden enemy and uncover the secrets of the Breakheart Pass.

Breakheart Pass is a mystery movie featuring Charles Bronson and directed by Tom Gries.

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