Cannon and fellow PI Barnaby Jones end up working the same case but for different clients when a whistleblower is raped and killed.
There are two versions of this story available, in one, Budd McKenna doesn't die and this episode is wrapped as a single episode of "Cannon". In other, fuller version, Budd McKenna is killed and part 2 of the story continues on "Barnaby Jones" (S04E01).