Kolchak is on assignment to interview singles aboard a cruise ship, and finds out some kind of wolf creature is killing passengers during the full moon.

Cast: Darren McGavin, Simon Oakland, Dick Gautier, Henry Jones, Nita Talbot, Eric Braeden, Jack Grinnage, Ruth McDevitt, Jackie Russell, Lewis Charles, Robert Hastings, Barry Cahill, Dort Clark, Heath Jobes, Jimmy Hawkins