Mobster Jake Kuzik is a major liquor supplier in Chicago and he doesn't hesitate to use strong arm tactics to keep his network of distributors and retailers in check. He's been having trouble getting supply lately and he comes under pressure - helped along by Eliot Ness and his men - to find liquor for sale or else. He forms an alliance with an arch-rival, Bugs Moran, to import half a million gallons of whiskey by train and they set up a clever deception to keep Federal agents off the scent.