Lucy gets jealous of the sophisticated ladies of the Danfield Art Society (which she and Viv want to join) because they all have maids. Lucy decides they must have a maid as well.

The car won’t work and the boys are apparently out a bundle. A car collector happens on the scene and offers to buy it at a premium. The “collector” is an escaped lunatic.

Two escaped convicts are found hiding in a rocket ship built by a renegade inventor, who forces them to become the crew for a trip to the Moon. Also on board, as inadvertent stowaways, are his assistant and his secretary; and none of them are aware that the inventor is actually a Lunarian explorer sent to Earth by the dying Lunar civilization.