Three children evacuated from London during World War II are forced to stay with an eccentric spinster. The children's initial fears disappear when they find out she is in fact a trainee witch.

A German living in India during World War II is blackmailed by the English to impersonate an SS officer on board a cargo ship leaving Japan for Germany carrying a large supply of rubber for tyres. His mission is to disable the scuttling charges so the captain cannot sink the ship if they are stopped by English warships.