While Quilly the bird is hanging up his washing in windy weather, a mouse tumbles out of the sky and sends Quilly and his washbasket to fall on the ground. The mouse tells Quilly that he goes to angel school and is learning to become an angel.
Angelmouse has seemed to have lost his thingimigig and is determined to go out and find it. Because he does not have his thingimigig he is rather grumpy.