A high ranking Russian official defects to the U.S., where he is interviewed by U.S. Agent Michael Nordstrom. The defector reveals that a French spy ring codenamed "Topaz" has been passing N.A.T.O. secrets to the Russians. Michael calls in his French friend and counterpart Andre Devereaux to expose the spies.—Col Needham
A French Intelligence Agent becomes embroiled in the Cold War politics first with uncovering the events leading up to the 1962 Cuban Missile Crisis, and then back to France to break up an international Russian spy ring.