Starsky and Hutch are trying to find a dock worker who killed an undercover police officer. They also are helping out with the wedding plans of Nancy Blake, Hutch's friend since childhood, who is about to marry the cop -- killing leader of a gang that has carried out a series of waterfront heists in Terror on the Docks. Nancy has asked Hutch to give her away when she marries Billy Desmond, a handsome and charming longshoreman. She works as a secretary for the security head of the Port Authority and does not know that her fiancé has been using her for information. He has masterminded several freighter heists and also is a murderer.