Illya goes to U.N.C.L.E.'s secret island training academy, the Survival School, to help Jules Cutter (Richard Beymer) find a THRUSH infiltrator who has assassinated a trainee. Suspicion focuses on three trainees Melisa Hargrove (Susan Odin), John Saimes (Chris Robinson), and Harry Williams (Charles McGraw), and Illya must find out who is the real double agent.

The show’s own verdict is on its page.