High Plains Drifter (1973)

In the rugged outpost of Lago, a mysterious gunfighter (Clint Eastwood) arrives, his reputation shrouded in enigma. Swiftly dispatching three would-be assassins, the townspeople recognize his deadly skills. Faced with an imminent threat, they strike an audacious deal: they enlist the Stranger to thwart the impending assault by three ruthless outlaws en route. As tension escalates, the once-quiet settlement braces for a showdown that will test the Stranger's mettle and the town's fate.