AllMovie

In hiding ever since his gang was wiped out in the St. Valentine's Day Massacre, Bugs Moran (George J. Wilke) is surprised when he is visited by a dead man. Actually, Eddie O'Gara (Michael Connors) is very much alive; it's just that everyone assumed he'd been killed by his fellow hoodlums when he dropped out of sight three years ago. Though Moran dismisses O'Gara as a two-bit punk, he is most receptive when Eddie comes up with a plan to put Bugs back on top again. Meanwhile, Elliot Ness (Robert Stack) searches high and low for both Moran and O'Gara, certain that at least one of them will be mad enough at their former enemies to help the Feds smash the Chicago Underworld once and for all.