John and his class visit the Tower of London, where he loses his pet mouse. He falls asleep during a lesson on electricity, but with some help, he learns about it, invades the Tower, and saves his pet.

Pseudonym Dr. Falke follows his wife through disguises and deceptions in postwar Vienna.

During a raid on Germany, a British bomber crew is forced to bail out after their plane is damaged. They land in Holland, where they're aided by Dutch civilians.

Led by British officers, partisans on Crete plan to kidnap the island's German commander and smuggle him to Cairo to embarrass the occupiers.