Mission: Impossible (1966) : 3x13

Walter Townsend is discovered to be a double-agent: the U.S. government has leaked false information to him to give to the enemy which will cause them embarassment if believed. However, Townsend's contact Simpson has discovered the information is false and reported to his superiors Townsend is a defector. Simpson's superiors know of his jealousy toward Townsend and send their best intelligence officer, Stefan Miklos, to discover the truth of the matter. The IMF must make Miklos believe the information is true and Simpson the liar. Rollin-as-Miklos gets Simpson out and then takes Simpson's place. The IMF sets a series of clues to make Miklos belief that Townsend truly is a traitor and preparing to defect, including tickets and a passport. However, Miklos spots a planted ""clue"" that convinces him the IMF are doing exactly what they are doing: framing Townsend! He identifies them and then receives the information from Rollin-as-Simpson and Jim when he's spotted Jim as one of the IMF opera