Robert Horton, Sebastian Cabot, Jill St. John, Dudley Foster, Clive Graham, George Roubicek, Eric Pohlmann, Eric Longworth, Eleanor Summerfield, Timothy Bateson, Blake Butler, Warren Stanhope, Martin Wyldeck, Carol Cleveland, Carol Dilworth
A former British Secret Service agent is persuaded to negotiate a spy exchange with Russia, only to find himself drawn into political intrigues.