90 - 1 - "
The Summit-Five Affair"
Sutton Roley Robert E. Thompson
September 11, 1967
Illya must find a security leak before the summit meeting between U.N.C.L.E.'s regional chiefs, and Napoleon is the prime suspect.
91 - 2 - "
The Test Tube Killer Affair"
E. Darrell Hallenbeck Jack Turley
September 18, 1967
A dying U.N.C.L.E. agent warns Napoleon and Illya that a group of supermen is being bred by THRUSH. The duo discover a school set up by the enemy organization in Mexico, who has already produced seven emotionless killer students. As a graduating exercise, one is chosen to eliminate Solo and Kuryakin after they follow the boy to Austria.
92 - 3 - "
The 'J' for Judas Affair"
Alf Kjellin Norman Hudis
September 25, 1967
When Solo and Kuryakin fail to keep millionaire industrialist Mark Tenza (Broderick Crawford) from being murdered, they and his son Adam (Chad Everett) have to locate Adam's brother J (short for James) to keep him from the same THRUSH-engineered fate.
93 - 4 -
"The Prince of Darkness Affair" – Part 1
Boris Sagal Dean Hargrove
October 2, 1967
"Someone has won the race to develop a thermal prism..." Parviz Kharmusi (John Dehner) has the prism and has used it to wipe out an entire African village. Solo and Illya enlist safecracker/cult leader Luther Sebastian (Bradford Dillman) to help them find the prism.
94 - 5 -
"The Prince of Darkness Affair" – Part 2
Boris Sagal Dean Hargrove
October 9, 1967
Sebastian has his own nefarious plans for the thermal prism. This two-parter was later released theatrically as
The Helicopter Spies.
95 - 6 - "
The Master's Touch Affair"
John Brahm Boris Sobelman
October 16, 1967
THRUSH chief and potential defector Pharos Mandor (Jack Lord) abducts Solo as part of his scheme to have U.N.C.L.E. eliminate his arch-rival Stepan Valandros (Nehemiah Persoff).
96 - 7 - "
The THRUSH Roulette Affair"
Sherman Marks Arthur Weingarten
October 23, 1967
Napoleon and Illya travel to an island casino to stop a dastardly mind control plot shepherded by Michael Rennie.
97 - 8 - "
The Deadly Quest Affair"
Alf Kjellin Robert E. Thompson
October 30, 1967
Old enemy Viktor Karmak (Darren McGavin) kidnaps Illya and gives Solo 12 hours to locate him in a condemned area of Manhattan before his Russian partner is killed by deadly gas, and before Karmak finds and kills Solo. (This episode was filmed on the burnt-out remains of the New York street set, which was destroyed by fire earlier that year.) Although this is the only non-season 1 episode to give Jerry Goldsmith credit for the score, it was adapted from his season one scores by MGM music head Robert Armbruster, and tracked into many episodes this season.
98 - 9 - "
The Fiery Angel Affair"
Richard Benedict John W. Bloch
November 6, 1967
The beloved leader of a Latin American country, Angela (Madlyn Rhue), is endangered by a THRUSH-backed revolutionary group; can Illya and Solo save her?
99 - 10 - "
The Survival School Affair"
Charles R. Rondeau Donald A. Brinkley and Jack Turley (teleplay), Donald A. Brinkley (story)
November 20, 1967
Illya must find a THRUSH double agent hidden in the ranks of the class about to graduate from U.N.C.L.E.'s training facility on a remote island. (This is the only episode in which Robert Vaughn does not appear.)
100 - 11 - "
The Gurnius Affair"
Barry Shear Milton S. Gelman
November 27, 1967
When a Nazi war criminal escapes from prison, the agents must track him down before he uses his mind control device to take over the world. Illya must pose as one of his compatriots, the sadistic Colonel Nexor (also played by McCallum). The dialog explicitely states the episode takes place 25 years after World War Two and the postwar trials, which would set it in 1970-1971, 3-4 years into the future when it was first broadcast.
101 - 12 - "
The Man From THRUSH Affair"
James Sheldon Robert I. Holt
December 4, 1967
Solo masquerades as an official from THRUSH to discover the truth about a mysterious project the evil organisation is developing on the island of Ibos. All goes well until the real man from THRUSH arrives... (David McCallum does not appear in this episode.)
102 - 13 - "
The Maze Affair"
John Brahm Leonard Stadd
December 18, 1967
Dr. Fabray (William Marshall) has invented a "molecutronic gun" – is there, as Solo and Illya believe, a link between this and the attempt by THRUSH agent Oliver Barnes (Lawrence Montaigne) to destroy a special package?
103 - 14 - "
The Deep Six Affair"
E. Darrell Hallenbeck Leonard Stadd
December 25, 1967
While U.N.C.L.E. agent Brian Morton (Peter Bromilow) prepares for his upcoming marriage to Laura Adams (Diana Van Der Vlis), Solo and Illya aid Morton on his quest to stop a THRUSH agent (Alfred Ryder) from stealing the plans for a new super-submarine.
104 - 15 -
"The Seven Wonders of the World Affair" – Part 1
Sutton Roley Norman Hudis
January 8, 1968
Gen. Harmon (Leslie Nielsen) has kidnapped Professor David Garrow (Dan O'Herlihy), the developer of a docility gas, and his son Steve (Tony Bill), and with the gas and soldiers, Harmon and his allies – the "Seven Intellectual Wonders of the World" – intend to take over the world. But a THRUSH agent, Mr. Webb (played by Mark Richman), and Margitta Kingsley (Eleanor Parker), the wife of an U.N.C.L.E. agent, also intend to steal the gas.
105 - 16 -
"The Seven Wonders of the World Affair" – Part 2
Sutton Roley Norman Hudis
January 15, 1968
"The battle (between good and evil) ends once and for all in favor of good." This two-parter was released theatrically as
How To Steal The World.