Seasons & episodes
S4 · E7The THRUSH Roulette Affair 1967-10-23
THRUSH agent Barnaby Partridge (Michael Rennie) uses his island gambling casino to brainwash VIP's into committing suicide by playing on their secret fears. U.N.C.L.E. sends Taggart Coleman (Charles Drake) to the island to help Solo and Illya uncover the process, and he encounters an old love interest there, Monica (Nobu McCarthy). But Partridge takes Illya prisoner and subjects him to the process training him to kill Solo.
S4 · E8The Deadly Quest Affair 1967-10-30
Illya recuperating in the hospital, is kidnapped by an old enemy, Viktor Karmak (Darrin McGavin), to lure Solo into a trap. Solo follows a clue to a twelve block condemned area of Manhattan, and finds modern artist Sheila Van Tillson (Marlyn Mason). Karmak appears and announces that Solo has until dawn to find Illya before a deadly gas kills him, while Karmak and his pet jaguar will try to hunt Solo down at the same time.
S4 · E9The Fiery Angel Affair 1967-11-06
In a Latin American country, Illya and Solo try to help the popular national leader, Angela (Madlyn Rhue) protect her government from the Secret Three, a revolutionary group backed by THRUSH. Solo is captured by the Secret Three, but escapes after learning that Vinay (Victor Ludlin), a friend of Angela's is plotting against her. He tells her husband, General Abaca (Joe Sirola), but the general is actually the one plotting to overthrow his wife's government and have her killed.
S4 · E10The Survival School Affair 1967-11-20
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.
S4 · E11The Gurnius Affair 1967-11-27
Solo and Illya go to visit a Nazi war criminal in prison, Von Etske (Will Kulova), but find that he has escaped with the aid of a special thought controlling device. His escape was observed by photographer Terry Cook (Judy Carne). Von Erske is joining forces with Zorgon Gurnius (George Macready), a fellow former Nazi, to reactivate their wartime triumvirate. Illya intercept Nexor, and finds that he is his exact double. He decides to impersonate Nexor to foil the plan.
S4 · E12The Man from THRUSH Affair 1967-12-04
Solo and agent Andreas Petros (Robert Wolders) are sent to the island of Ibos, where the Technological Hierarchy for the Removal of Undesirables and the Subjugation of Humanity has been spending huge amounts of money on some unknown project. Solo, posing as a visiting THRUSH official, meets Dr. Killman (John Larch), the head of the project, and Marnya (Barbara Luna), who reveals that Killman is working on an earthquake device, as the real THRUSH emissary arrives.
S4 · E13The Maze Affair 1967-12-18
Oliver Barnes (Lawrence Mantaigne), a THRUSH agent, unsuccessfully tries to destroy a package. Solo and Illya suspect a connection between this and a new ""molecutronic gun"" developed by Dr. Fabray (William Marshall). Solo runs into Abbe Nelton (Anna Capri). Fabray turns out to be a THRUSH collaborator. The entire scheme was a plan to get Illya to take the ""gun"" actually a bomb, into U.N.C.L.E. headquarters in Trojan Horse fashion.
S4 · E14The Deep Six Affair 1967-12-25
In London U.N.C.L.E. agent Brian Morton (Peter Bromilow) is planning on getting married much to Waverly's disapproval. Solo and Illya help Morton on his current mission, stopping THRUSH agent Commader Kroler (Alfred Ryder) from stealing the plans for a new supersubmarine. Waverly tries to dissuade Laura Adams (Diana Van Der Vlis), Morton's fiancee, but to no avail. Morton and Laura are then kidnapped by Kroler, and Kroler threatens to kill Laura if Morton does not obtain the sub for him.
S4 · E15The Seven Wonders of the World Affair (1) 1968-01-08
Mr. Webb (Mark Richman), a THRUSH agent, and Margitta Kingsley (Eleanor Parker), the wife of U.N.C.L.E. agent Robert Kingsley (Barry Sullivan), plot to steal a docility gas from General Maximilian Harmon (Leslie Nielson), who has kidnapped Professor David Garrow (Dan O'Herlihy) and his son Steve (Tony Bill). Harmon and a group of scientists consider themselves the ""Seven Intellectual Wonders of the World"" and, with the gas and the troops, plan to take over control of the world and ensure peace.
S4 · E16The Seven Wonders of the World Affair (2) 1968-01-15
Mr. Webb (Mark Richman), a THRUSH agent, and Margitta Kingsley (Eleanor Parker), the wife of U.N.C.L.E. agent Robert Kingsley (Barry Sullivan), plot to steal a docility gas from General Maximilian Harmon (Leslie Nielson), who has kidnapped Professor David Garrow (Dan O'Herlihy) and his son Steve (Tony Bill). Harmon and a group of scientists consider themselves the ""Seven Intellectual Wonders of the World"" and, with the gas and the troops, plan to take over control of the world and ensure peace.