Episode 1
The Deadly Conspiracy (II)
September 19, 1975
Cannon and Barnaby Jones investigate the death of a young woman who was about to expose the illegal activities of the large corporation she was working for. The crossover starts on Cannon S05E02 The Deadly Conspiracy (I).
Episode 2
Theater of Fear
September 26, 1975
Episode 18
Silent Vendetta
January 29, 1976
Barnaby is hired to find a missing writer and gets caught between a man with a story to tell and mobsters who don't want his tell all book written.