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The Exchange is the sixth episode of the fourth season of Cannon, and the seventy-ninth episode overall.
Guest Star: Robert Loggia (Gutierrez)
Special Guest Star: Edward Binns (Lyle Stacy)
with Ron Henriquez (), Ray Vitte (), Rick Richards (), Owen Bush (), Tom Stewart (), Edward Olmos (), Jason Laskay (), Ed Deemer (), Robert Rhodes (), Chester Jones (), John Steadman (), Walt Davis (), Lance Kerwin ()
Puzzled by the strange behavior of an old friend, a veteran detective, Cannon investigates and discovers that a killer out for revenge has kidnapped another detective and wants to exchange him for Cannon's friend.