Francois Korb is an arms manufacturer who sold both to the Germans and the Allied forces. Korb's home life is less than ideal, since his wife is having an affair with his brother, and his young son is inseparable from a teddy bear. To remedy the son's situation, the parents take in a little refugee girl as a temporary companion and playmate, and the two children become fast friends.

At the outbreak of WWII the British realise they can't prevent the invasion of the Channel Islands. However, someone realises that a prize cow is on the islands and the Nazis mustn't get hold of her. This is the intrepid story of the cow-napping from under the noses of the Nazis.