Oliver Barnes, a Thrush agent, unsuccessfully tries to destroy U.N.C.L.E. HQ. Meanwhile, Napoleon and Illya are assigned to protect Dr. Febray and the new molecutronic gun that he has created for the Army. Barnes steals the gun and captures Napoleon, and the agent soon realizes that Barnes has another plan to destroy headquarters.moreless
In Portugal, Solo is taken prisoner by Pharos Mandor, a Thrush chief ready to defect if his arch rival, Thrush assassin Stepan Valandros, does not kill him first. Solo meets Mandor's girlfriend, Cathy Welling. Mandor tells Solo U.N.C.L.E. must kill Valandros or he will not defect, but his real aim is to eliminate Valandros and promote himself up the Thrush ranks.moreless
Jacqueline Midcult writes a best selling novel, Pieces of Fate, which U.N.C.L.E. recognizes as being based on a series of missing Thrush diaries. She loses her memory during a Thrush attempt to kill her, and Thrush agents Ellipsis Zark and Jody Moore, a book critic, plot to kidnap her and find out where she found the diaries. Solo and Illya take Jacqueline to a small town where her Uncle Charlie and Aunt Jessie live, to try and revive her memory. However, Zark and Moore follow and they all converge on the attic where the diaries are hidden at the same time.moreless
Solo and Illya must protect Premier Georgi Koz, a Khrushchev like European leader, on a visit to New York, Priscilla Worth is befriended by Loz and she takes him to a school for Santa Clauses run by Francis X. O'Reilly where just one of a series of assassination attempts against him must be thwarted by the two U.N.C.L.E. agents.moreless
Illya parachutes out of a plane carrying Thrush code documents, but lands in the desert at an abandoned Foreign Legion post run by Captain Basil Calhoun. Illya is accompanied by a stewardess, Barbara while Solo races to find them before Thrush does.moreless
Thrush is so eager to get their hands on a boy genius that they murder the boy's father. But then they have to deal with the boy's madcap aunt.