After successfully swindling thousands of dollars from hapless victims, conflicted con artist Mary (Hillary Brooke) decides to go straight, but her greedy boyfriend and partner, Roger (Tom Conway), convinces her to pull off one final scam before they get married. Written and directed by Andrew L. Stone, this classic crime film finds the police struggling to keep up with the deceptive duo's exceedingly complicated schemes.

After straight-arrow district attorney Joseph Foster says in frustration that he would sell his soul to bring down a local mob boss, a smooth-talking stranger named Nick Beal shows up with enough evidence to seal a conviction. When that success leads Foster to run for governor, Beal's unearthly hold on him turns the previously honest man corrupt, much to the displeasure of his wife and his steadfast minister.

Finishing a trail drive, Hoppy and the boys head to town and immediately get caught up in the conflict between school teacher Miss Abott and next door saloon owner Mawson. When Miss Abott disappears, Hoppy gets a clue to her location and rescues her from Mawson's cabin. It looks like Mawson is the man he wants, but Hoppy finds an item that indicates otherwise.

Ranger Tex Wyatt introduces himself as the notorious bandit Spade Norton. Crooked saloon owner Red Hayden believes him until the real Spade turns up and all hell breaks loose.