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.

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.