U.N.C.L.E. agents Napoleon Solo and Illya Kuryakin are sent to the Swiss Alps to find a secret nuclear weapon design but T.H.R.U.S.H. agents kidnap Solo and replace him with a look-alike double.

Stars

Robert Vaughn

Senta Berger

David McCallum

Leo G. Carroll

Michael Evans

Sharon Farrell

Fabrizio Mioni

Donald Harron

John Newland