Mission: Impossible - Season 7 Episode 20 : The Pendulum 1973

Gunnar Malstrom leads the Pendulum, a secret terrorist group that is planning Operation Nightfall, targeted at the U.S. government - the IMF must stop it and bring Malstrom to justice. Casey dates Malstrom and brings him to World Resources Ltd., an IMF front company and supposed rival organization to Pendulum, and offer him a job if he leaves Pendulum. The IMF use a hidden polygraph to determine that Pendulum plans the assassination of a general - they fail to learn that the assassination has already taken place and Pendulum plans to have their general blow up the Chiefs of Staff in an explosion. Jim tries to warn the fake general, who asks him to sit in on the meeting. Thanks to a planted transmitter, the IMF discover Pendulum's true plan and Jim gets rid of the bomb just in time.