The dare-devil detectives work undercover as stunt-men on the set of a new Western movie, in order to investigate a series of suspicious, fatal "accidents" that has befallen several members of a long-standing group of actors known as the 'Wolf Pack', with the head of the group and star of the film fearing that he'll be next. As Starsky and Hutch roll with the punches and blows in their guises as stunt-men, the case leads them to uncover a bizarre story of thwarted stardom and twisted revenge...