Mission: Impossible (1966)

S1E24 The Train

Prime Minister Larya of Svardia is striving to bring democracy to his nation, unaware that his trusted Deputy Premier, Pavel, is secretly plotting to establish a dictatorship. The team must convince Larya of Pavel's true intentions. The IMF orchestrates a fake train ride for Larya, Pavel, and Pavel's assistant, Androv. After staging a train crash, they place Androv and Pavel in a phony hospital and falsely inform them that Larya has died. They quickly initiate plans to erase Larya's legacy and start rounding up opponents. Suddenly, a wall in the hospital slides away, revealing Larya, who has overheard everything and promptly dismisses them both.