Robert Vaughn as Napoleon Solo, David McCallum as Illya Kuryakin, Barry Sullivan as Robert Kingsley, Eleanor Parker as Margitta Kingsley
Taken from Episodes 4-15 and 4-16. When an U.N.C.L.E. agent and a general from a European nation disappear, Solo and Kuryakin investigate. They learn the vanishings are related to the disappearance of five major league scientists by a man with plans for world domination.