A British spy helps a Russian scientist to defect from the Soviet Union by taking a perilous journey through the Eastern Bloc.
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Kevin McNally
Johnny Donoghue
Bernard Hepton
Henry Carter
James Faulkner
Charles Mawby
Hans Caninenberg
Professor Guttman
Brigitte Karner
Erica Guttman
Stephan Meyer-Kohlhoff
Willi Guttmann
Donald Pickering
Permanent Undersecretary
Robert Lang
Deputy Undersecretary
Bert Parnaby
Adam Percy
Claus-Peter Seifert
Ulf Becker