Writer: Leigh Vance
Dir.: Barry Crane

Jim Phelps: Peter Graves
Paris: Leonard Nimoy
Dana Lambert: Lesley (Ann) Warren
Barney Collier: Greg Morris
Willy Armitage: Peter Lupus

Manuel Ferrar: John Colicos
Plato: Shepard Sanders  
Adolfo Rojas: Dom Tattoli

The task challenging the IMF is to reveal the identity of someone who calls himself "Plato". Plato's next plan is to murder Adolfo Roja so that his government can be taken over by Manuel Ferrar. To get Ferrar the IMF drugs him before takeoff in a plane and takes him (in disguise) by ambulance to a replica of the plane where he awakes. On its "flight" this plane gets in trouble, the engines fail and the plane is just before a crash – this is what he experiences before he sleeps in again. 

He wakes up to find himself a survivor of a plane crash - on an island. He is found by prisoners and learns that the uncharted island is a place where convicts, such as Paris, are surviving - all of them believed dead or lost at sea. They live in a system of underground tunnels. Ferrar remembers the name "Marcos" and discovers it: Sewed onto Paris' striped convict suit. 

Marcos was an undercover agent Ferrar never met. When Ferrar finds out about an escape plan from the island by a small boat, he reveals himself to Marcos and tries to escape with him alone. As the others are after them, he tries to escape and wants Paris to back him up. Unfortunately Paris is incapable and too much in distress to hold up the others, so that Ferrar offers to back up Paris in order to fulfill the task. When the gunfire suddenly stops, Ferrar explores the tunnels which were usually crowded by convicts – finding all deserted. As he climbs up the shore, he's surprised to view a quite populated area and to see the police cars arriving.