A private detective, who has been shot, stumbles into the office of Michael Shayne (Hugh Beaumont), and dies before Shayne can question him. Shayne finds a baggage ticket in his hand. He claims it and finds the checked-bag contains the loot from a robbery. Now, he has about fifty minutes left of the running time to find the crooks, bring them to justice and return the money to the rightful owners. And needs all of it.