A westerner chases a solid-gold stagecoach full of crooks.

A conniving postal inspector tells a gang of Mexican bandits about an expected stagecoach shipment of gold and is immediately shot to death by the gang. The Stranger, a sarape-draped wanderer who carries a pink parasol, finds the man's body, takes his identification card, kills several of the bandits, and rides into Moon Village. En Plein, the gang leader, seizes the designated stagecoach, killing the driver and passengers, but discovers that it is a decoy. The Stranger, masquerading as the dead postal inspector, attempts to gain entrance to En Plein's hideout but is ambushed and captured. He learns that Good Jim, a local official, is in league with En Plein to steal the real stagecoach, whose solid gold framework is concealed by wooden panels painted red. The Stranger is tortured by the gang but manages to free himself by cutting his bonds with a piece of broken glass. Good Jim tries to double-cross En Plein by switching coaches, but his ruse is discovered, and he is murdered after revealing that the real coach is hidden in a cemetery. The Stranger arrives on the scene in time to prevent the rape of Good Jim's daughter, Caroline. Then, aided by a preacher known as The Prophet who sets off fireworks at opportune moments, The Stranger guns down the gang members with a sawed-off shotgun. The Stranger and The Prophet take the bandits' corpses into town and collect a $10,000 reward. Since The Stranger plans to keep the disguised gold coach for himself, he magnanimously gives The Prophet the entire reward. As The Stranger drives out of town, however, fireworks left inside the coach explode and expose the gold framework. Relinquishing the coach to the U. S. Cavalry, The Stranger seeks out The Prophet and reclaims his share of the reward.