Britain has been fighting the Second World War for five years and, with his father away serving in the navy, Jimmy feels responsible for looking after his mother and sister.

But when he loses track of time at the cinema, Jimmy finds himself in real trouble.

It's dark and the sirens are blaring - it's a bombing raid!

Forced to spend the night in a shelter, when he finally gets home, there's no home to go to. The house has been bombed out and his mother and sister are nowhere to be found. How will Jimmy survive alone on the dangerous streets of London? And will he ever find his family?