The agents of Thrush kidnap Napoleon Solo (Robert Vaughn) and replace him with an identical double so they can steal the access to a secret weapon that UNCLE are guarding. It is up to his companion (David McCallum) to work out the plot and save him. This is one a series of films based of the television series The Man from UNCLE and is a typical 1960's mix of action and pretty women. Robert Vaughn and David McCallum are good in the two lead roles.