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.

In Boothillville at the No Chance Saloon, the Three Stooges play a piano. They ask requests, and a cowboy says to get out of town. They have to find a way to outsmart the cowboy and earn the right to remain a Boothillville resident.

Porky Pig travels to a surreal land in order to hunt and catch the elusive Do-Do bird, reportedly the last of its kind.