A Czech scientist and his daughter (Margaret Lockwood) try and escape from Nazi Germany but are captured and taken back to Germany by an under cover Nazi agent and then helped to escape to Switzerland by Rex harrison as an undercover British agent. This is a good wartime film thanks to the performances from both Rex Harrison and Margaret Lockwood.
3/5 
Margaret Lockwood
Rex Harrison
Paul Henreid 
Basil Radford
Felix Aylmer
Roland Culver 
Eliot Makeham 