The stooges accompany professor Jones on an expedition to Venus, where they discover that the Venusians are planning to conquer the earth with an army of zombies. When the boys learn that they're going to be turned into zombies, they escape. The scene changes to the stooges apartment where we learn they are just telling a bedtime story to their kids (also played by the stooges) while they wait for the baby sitter to arrive. When the baby sitter shows up, she looks like one of the zombies and the boys exit in a hurry.moreless
The Stooges don't know it, but they are all engaged to the same girl, a gold-digger who plans to get an engagement ring from each of them and then abandon them. When all three show up at her house at the same time, a wild fight ensues, as each stooge accuses the others of making time with "his" girl.moreless
The Stooges are taking care of their sister Birdie who has been reincarnated as a horse. When they learn that her mate "Schnapps", a famous circus horse, is about to be destroyed, they got to the circus grounds to rescue him.
Told in flashback, Moe is on trial for assaulting Larry and Joe. It seems that Moe was in debt and suffering a nervous breakdown so Larry and Joe took him to the country for rest and relaxation. But the trip went haywire due to complications involving anescapedoutlaw and a wild bear.moreless
An eccentric scientist tricks the Stooges into joining him and his daughter on an expedition to the planet Sunev. On Sunev, the boys go exploring and encounter some cannibalistic Amazons who plan to devour them.
The stooges appear in triplicate as three sets of triplets who were separated a long time ago. Their reunion causes confusion and troubles for various wives and sweethearts, but it all works out in the end.
Joe is engaged but can't get married until he recovers the engagement ring which has disappeared. The stooges suspect the ring was stolen by Elmo, a beefy bully, who works at the same factory they do. They confront Elmo in the company gym, but he might be a bit tootoughfor them.moreless
Joe dreams that the stooge's sister Birdie has died and been reincarnated as a horse. The stooges take Birdie home but must conceal her from the snoopy landlord. They succeed, but more complications ensue when Birdie gives birth to a colt.