Mission: Impossible (1966) : 3x5

The IMF must stop Lewis Parma, a Syndicate man who is close to gaining total control of the food distribution industry in the U.S. To stop him, the IMF must get his hired assassin Vic Duchell to turn state's evidence, but Duchell is resolute. Jim pretends to be a merchant who resists Parma's extortion efforts so as to become a target. Duchell bombs Jim's apartment but is knocked out. He wakes up ""years later"" to find himself on death row: he's been convicted for Jim's murder and is hours away from execution. Duchell believes Parma will get him out as he did one time before, but thanks to the IMF's staging, of course Parma is nowhere in sight. Just as he is is about to be fake-executed, Duchell breaks and turns evidence on Parma, just as Parma arrives at the warehouse where the scam is going on.