During a spell of excruciatingly hot weather, Stone and Briggs turn up the heat to find two murderous muggers. Unbeknownst to Sam, they've forced their way into the home of Albie Froehlich, one of Sam's top snitches.

Frightened victims of high society burglars give false information to Sam and Jim, hindering their investigation. When the crooks pursue the victim's daughter at Marineland, the Squad must race to the rescue.