Mission: Impossible (1966)

S1E4 Old Man Out (1)

The IMF team disguises themselves as a circus troupe to rescue Anton Cardinal Vossek, the leader of a freedom movement imprisoned in the nearly escape-proof Seravno Prison. As he faces a sham trial and imminent execution at the hands of Colonel Scutari, the team enlists the help of acrobat Crystal Walker. To gain entry, Rollin pretends to be a pickpocket and gets himself arrested. Inside the prison, he must stealthily navigate the corridors to free Vossek for a practice run, but their plan is nearly thwarted when guards unexpectedly arrive at a crucial moment.