Presidente Rojas plans to give a speech to the U.S. Congress while his Chief of Internal Security Ferrar plans a takeover and sends an assassin known only as Plato (and known only to Ferrar) to kill the Presidente before he gives his speech. The IMF must find out who Plato is and thwart the assassination. Ferrar follows Rojas to the U.S. where the IMF fake a plane crash - when Ferrar wakes up he is on an uncharted island colony inhabited by the prisoners from a missing penal ship. Paris pretends to be a double-agent working for Ferrar that the Chief knows of but never met.
Stars: Peter Graves (James Phelps), Leonard Nimoy (Paris), Greg Morris (Barney Collier), Peter Lupus (Willy Armitage), Sam Elliot (Doug Robert); Guests: John Colicos (Chief of Internal Security Manuel Ferrar), Lloyd Battista (Chief of Police Francisco Diaz), James Almanzar (Lieutenant Barata), Tol Avery (Stone), John S. Ragin (Butler), Shepherd Sanders (Plato), Conrad Parham (Airline Clerk), Shirley Washington (Stewardess)