The Stooges witness an armed robbery and are brought in by the cops as suspects. After passing a lie detector test, the boys are freed and go back to their jobs in a cafe. When one of the robbers comes into the cafe, the boys recognize him and along with their friend Gladys trail him to a spooky house in the country where the crooks are hiding out. The bad guys abduct Gladys and the Stooges must rescue her.
Larry and Shemp reminisce about their experiences with Jean, a diamond crazy gold digger each of them was gypped by. After telling their stories, they have a run in with Moe, who is now married to the same women. When Jean shows up, they deliver some stooge-style revenge.
The stooges hope to collect a reward by proving to a museum that cavemen still exist. They return from their expedition with a film purporting to show some stone age stooges defending their women from other cavemen. The museum curators are about to pay they reward, until they overhear the stooges talking about how they faked the film, with themselves playing the cavemen.
Shemp is a sick man with a bad case of nerves. The stooge's friend Claude, a self-taught healer, tries to cure Shemp with various home- made remedies. When nothing seems to work, Claude suggests they buy his old lemon of a car so they can take Shemp on a trip to the country. The car won't start, and the trip never gets off the ground, but not to worry, Shemp is cured by all the excitement.
The stooges apply for job as 'Yard Men' at Scotland Yard, thinking they'll become detectives, but instead wind up as gardeners. When they accidentally see a memo about the theft a famous diamond, the boys decide to go after the crooks. They find the crooks, but Shemp accidentally swallows the diamond which was hidden in a bowl of candy. The bad guys want to cut the diamond out, but the boys foil them with the help of a friendly gorilla.
The stooges go to criminology school and graduate with the lowest possible honors. The boys join the police force and are assigned to track down a crook called the "Eel", who disguises himself as a woman. The stooges track the Eel to a hotel, but he slips through their hands after a wild chase. The stooges are booted off the force and wind up as ditch diggers. This was Shemp's last completed film.
The stooges are private detectives hired to protect a rich politician. After the man disappears, the boys wander around his spooky mansion confronting various villains and a dangerous dame. The stooges vanquish the crooks (Shemp uses his "trusty shovel") and find the missing man.
Set in a desert land where the stooges run a restaurant, the boys need money to pay their fiancée's taxes, or the girls will be sold as slaves. Some crooks come into their restaurant and convince the boys to recover the stolen Rootin Tootin diamond. The stooges decide to return the diamond to the government and get the reward money. They learn that the Emir of Shmo has absconded with the contraband jewel. They journey to the stronghold of Shmo where they disguise as Santa Clauses and scare the ruler into giving them the diamond.
The stooges are three incompetent plumbers who foul up the plumbing in a fancy mansion where a society party is going on. They manage to catch a couple of thieves masquerading as guests before the whole party degenerates into a pie fight.
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.
An eccentric scientist tricks the stooges into joining himself and his daughter on an expedition to Venus. On Venus, the boys go exploring and encounter some cannibalistic amazons who plan to devour them. The stooges escape and take off in the spaceship which goes wildly out of control. As the ship is about to crash, the scene changes to the annual meeting of the Liars Club, where the stooges win the prize as the biggest liars in the world.
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. After a marauding bear ruined the peace and quiet, their cabin became the scene of a shoot-out between the sheriff and an escaped outlaw. The boys captured the bad guy, and the reward would have paid Moe's debts, but the crook escaped and Moe went after Larry and Joe with an ax.
A sequel (sort of) to "Hoofs and Goofs", 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. The stooges are successful, and Birdie and Schnapps are reunited.
Schoolgirl Mami Sakura discovers that she has superpowers. She can sense other people in trouble and teleport to help them, but she keeps her secret double-life hidden from her parents with the help of her schoolfriend, Kazuo Takahata. In this short film, Mami uses her powers to make a puppet show for deprived children.
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. The gold-digger gets it in the end (literally) with tacks shot from a repeating rifle.
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.
Joe wins a contest and is promptly fleeced out of his winnings by some con men. When the stooges go to recover his money, the bad guys convince them that they can get rich by posing as children and becoming the wards of a millionaire. The boys go along with the plan, not realizing that the "millionaire" and his pretty niece are in on the scam and are planning to knock them off. The stooges foil the plan and recover Joe's money.
A professor attempts to win a bet by turning the stooges into gentlemen. After some lessons in etiquette, the boys make their society debut at a fancy party. They soon revert to their old habits and a wild pie fight ensues.
Nightclub performer Larry wants Joe and his sister Tiny to join the act. The only problem is that Tiny is afraid to sing in front of people. They take her to a psychiatrist (Moe) who cures her, and the act is a success.
Joe accidentally takes a picture of a paper plate which Moe and Larry submit to a magazine as an authentic picture of a flying saucer. Moe and Larry collect a big prize, but when the picture is proven to be phony, they're hauled off to Jail. Joe then gets a picture of a real spaceship and this time he gets the fame and fortune, while Moe and Larry wind up in a sanitarium.