The Mechanic

In this 1972 thriller, a veteran hit man named Arthur Bishop, played by Charles Bronson, takes on a ruthless and ambitious young apprentice, Steve McKenna, in a rigorous training program that pushes them to their limits. As they work together on several high-stakes hits, Bishop begins to wonder if he's made a mistake taking Steve under his wing, especially after discovering the younger man's true intentions. A tense game of cat and mouse ensues, with the two men engaging in a battle of wits and violence that ultimately proves fatal for both.