Amidst the thaw of glasnost, the Kremlin discovers that two Soviet agents, sent to England under deep cover in 1965, have been "lost." A beautiful and ambitious Russian agent, sent to London to track them down, becomes embroiled in a tangle of CIA, KGB and MI-5 plots and counter-plots as the two lost agents, now utterly assimilated, try to avoid detection.
Top Billed Cast
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Nigel Havers
Jeremy Coward (4 episodes)

Warren Clarke
Albert Robinson (4 episodes)

Michael Gough
Andrei Zorin (4 episodes)

David Calder
Viktor Chekhov (4 episodes)

Joanna Kanska
(4 episodes)

Christopher Rozycki
Oleg Petrovski (4 episodes)
RH
Richard Huw
(4 episodes)

Annie Hulley
(4 episodes)

William Chubb
(4 episodes)