Potts (George Cole), a British Sanitary Engineer (a plumber in the Colonies), leaves on vacation (holiday in the Empire) with a set of plans for a new secret weapon which he has mistaken for his new plumbing invention. Everyone is hunting for him, including the Russians. The Russkies find him and offer him a job in the Kremlin doing research (on plumbing he believes), he accepts, arrives in Russia and falls in love with Tania, a secret agent. And discovers the true nature of the plans he is carrying.

Review:
'A happy film of the "cold war" period which managed to defuse the tensions of the time and gave one some good belly laughs along the way. Stirling performance by George Cole, and able support from Oscar Homolka and the gorgeous Nadia Gray.'

Director: Mario Zampi
Writers: Jack Davies (screenplay), Jack Davies (story)

Cast
George Cole ... George Potts
Oskar Homolka ... Zekov
Nadia Gray ... Tania Ivanova
Frederick Valk ... Rakov
Wilfrid Hyde-White ... Sir Hubert Wells
Geoffrey Sumner ... Pike
Ronald Adam ... Barworth Controller
Ernest Jay ... Prof. Layton
Edwin Styles ... Barworth Superintendent
Richard Wattis ... Barnes
Michael Medwin ... Smedley
Eleanor Summerfield ... Cecilia
Irene Handl ... Mrs. Tidmarsh
Phyllis Morris ... Mrs. Tweedy
Charles Goldner ... Gaston

Country:UK
Language:English
Runtime:93 min
Sound Mix:Mono
Color:Black and White