A British spy helps a Russian scientist to defect from the Soviet Union by taking a perilous journey through the Eastern Bloc.
as Johnny Donoghue
as Henry Carter
as Charles Mawby
as Professor Guttman
as Erica Guttman
as Willi Guttmann
as Permanent Undersecretary
as Deputy Undersecretary
as Adam Percy
as Ulf Becker
as Heini Schalke
as Jutte Hamburg
as Renate
as Charlie Davies
as Lizzie Forsyth
