It's hard to see how this flag-waver could have raised anyone's spirits during the darkest days of the Second World War. There's a modicum of excitement in the attempt by Michael Wilding, Hugh Williams and Roland Culver, along with their French guide James Mason, to glean information about Nazi invasion plans. But the comic subplot involving Wilding and his French wife, and the romance that develops between Williams and Mason's sister (Carla Lehmann), are embarrassingly twee. Credit to director Harold French for keeping the pace brisk, but this is unremarkable fare. Look out for a young Stewart Granger in a bit part.

World War II drama in which a member of the French Resistance and three British agents undertake a hazardous mission to infiltrate a German HQ in search of vital information that could lead to the overthrow of the Nazis.