The whole town turns out to watch the first train journey when the bridge at Silver Falls is completed. The atmosphere is joyous, but the day turns sour when Kane Cresswell and his bandit gang arrive. They raid the train and, in the ensuing chaos, fifty thousand dollars fall into the river, seemingly lost forever.

Wyndham Shelford cannot get this image out of his head and is determined to find the missing money. Soon bodies start washing up in the river, and the unconventional lawman US Marshal Lloyd Drake arrives. The Marshal believes that the train raid wasn't everything it seemed, but his reckless search for the truth is endangering the lives of everyone in town. Can Wyndham find the money and put a stop to this path of violence before it's too late?