The government sends Stanley on a mission to catch a crime gang that requires him to impersonate a safecracker who looks exactly like him, fool the man's girlfriend, and somehow convince the gang that he knows how to break into bank vaults.

To find out where $2 million in stolen money is hidden, Stanley goes undercover as "Slippery Sloan" to help bank robber "Blackjack" Clayton escape from prison so that Clayton will trust Stanley enough to tell him where the money is.