Recruited by the Russians during their days at Cambridge, three young Englishmen rise to become high-ranked MI5 agents until their exposure in 1949.
Length 90 minutes
Anthony Bate | Derek Jacobi | Michael Culver | Bernard Archard | Barrie Cookson | Oliver Ford Davies | Ingrid Hafner | Richard Hampton | Patrick Holt | Robin Hooper | Richard Hurndall | Anthony Langdon | Arthur Lowe | David Markham | Hugh Morton | Elizabeth Seal