"Mac" McGill (Richard Branford, The Untouchables) is an ex-spy with a murky past and an uncertain future. Wrongfully dismissed by his bosses in U.S. intelligence, he decides to freelance as a private detective based out of London. McGill's work takes him far and wide, yet seemingly always on a collision course with the British authorities, the Soviets, and his old colleagues in American espionage.
