"The Prince of Thieves" arrives in San Francisco and executes a daring robbery.

Matt wayne try's to out-wit an organized gang of bank robbers. Members of the San Francisco banker's association want to remove Marshal Wayne from office for not bringing the robbers to justice. Wayne learns that one of the gang is hideing out in a cabin outside the city. Matt's only course is to capture the bandit, place him in jail, and find out about the rest of the gang.