Mario and Luigi, plumbers from Brooklyn, find themselves in an alternate universe where evolved dinosaurs live in hi-tech squalor. They're the only hope to save our universe from invasion by the dino dictator, Koopa.
Happy-go-lucky aspiring sportswriter Lon Decker from Indiana who has aspirations of becoming a sportswriter meets the shrewd and larcenous old man, "Mac" Dougal during his wandering. Mac likes to ensure his bets on Quarter-Horse races by doping a horse or two here and there. When Lon finds out Mac intends to fleece wealthy rancher Zelda Bagley he sets out to stop him.
Bookmakers try to fix a horse race.
Jimmy Easter is a jockey who gets shook up when he is responsible for the death of a fellow rider during a race. He gets back down to business, however, when the daughter of his ex-boss shows her faith in him.
The Lemon Drop Kid is a fast-talking racetrack bum who swindles $100 from an old, ailing man. He takes it on the lam with his sidekick, The Professor.
Corky, a tough female ex-convict working on an apartment renovation in a Chicago building, meets a couple living next door, Caesar, a paranoid mobster, and Violet, his seductive girlfriend, who is immediately attracted to her.
A wicked investor wants Werner's residential area razed to the ground in order to build a shopping center. However, building tycoon Günzelsen has not reckoned with Werner. Together with his master Röhrich he's planning to blow away the plumbings with a gigantic obstruction...
Stodge City is in the grip of the Rumpo Kid and his gang. Mistaken identity again takes a hand as a 'sanitary engineer' named Marshal P. Knutt is mistaken for a law marshal. Being the conscientious sort, Marshal tries to help the town get rid of Rumpo, and a showdown is inevitable. Marshal has two aids—revenge-seeking Annie Oakley and his sanitary expertise.
Suzanne, a waitress, comes up with a sure-fire method for winning at the racetrack and, later, when she inherits a fortune from a customer of the restaurant, she use the same system for investing her money. Her stock broker tries to dissuade her, but she persists and her investments increases her wealth.
As a child Jack Brooks witnessed the brutal murder of his family. Now a young man he struggles with a pestering girlfriend, therapy sessions that resolve nothing, and night classes that barely hold his interest. After unleashing an ancient curse, Jack's Professor undergoes a transformation into something not-quite- human, and Jack is forced to confront some old demons... along with a few new ones.
When he has to pay a debt to a fearsome money lender, a man accepts the help of a friend who takes him to a scientist where he can sell his body, but things get worse than expected.
College freshman Sydney White arrives at Southern Atlantic University, determined to pledge her late mother's sorority. Unfortunately, she finds that the sisterhood has changed since her parent's day. Banished to a condemned house, Sydney joins forces with seven outcasts to take over the student government and win equal rights for nerd and noted alike.
Hercules, a small, bulbous-nosed plumber, receives a note saying he must "fix leak at Carnegie Hall".
Albert Steptoe and his son Harold are rag-and-bone men, complete with horse and cart to tour the neighbourhood. They also live amicably together at the junk yard. Always on the lookout for ways to improve his lot, Harold invests his father's life savings in a greyhound who is almost blind and can't see the hare. When the dog loses a race and Harold has to pay off the debt, he comes up with another bright idea. Collect his father's life insurance. To do this his father must pretend to be dead.
Amateur plumber Cluny Brown gets sent off by her uncle to work as a servant at an English country estate.
A villain, competing with his rival's race car, kidnaps the rival before the race. Mabel decides to take the wheel in his place.
Paris plumber Elmer Tuttle is enlisted by socialite Patricia Alden to help make her lover Tony Lagorce jealous. With the help of his friend Julius J. McCracken and through the high society contacts he has made through Patricia, Elmer hopes to find financing for his latest invention, a pistol with a range-finding light. Comic complications ensue when Elmer's effort to interest a military leader is misconstrued as an assassination attempt.
A doctor is driven into an investigation of sinister goings-on at a horse race track by his mystery writer ex-wife.
Two ex-soldiers return from overseas--one of them having smuggled into the country a French orphan girl he has become attached to. They wind up running into their old sergeant--who hates them--and getting involved with a race-car builder who's trying to find backers for a new midget racer he's building.
A cop goes undercover as a mobster and gets a plumber involved in his mess. Meanwhile, a producer falls in love with a drag queen that isn't what she seems to be...