Ole Olsen and Chic Johnson are Broadway stars who return to Universal Studios to make another movie. The mere mention of Olsen and Johnson's names evacuates the studio and terrorizes the management and personnel. Undaunted, the comedians hire an assistant director and unknown talent, and set out to make their own movie.

A horse trainer who has fallen on hard times looks to his horse, Broadway Bill, to finally win the big race.

Ma and Pa, along with daughter Rosie, go off to Hawaii in answer to cousin Rodney's call for help running his pineapple farm while he recovers from an illness. Pa soon causes a major explosion and gets himself kidnapped.

The Indians try to make a fire in the Kettles fireplace the old fashion way, the smoke signal way. Judges are a comin' to award a child with a scholarship. However, who ever has the nicest looking farm and raises their kids in a good enviroment has a chance of winning.

Ma and Pa are trying to raise enough money at the county fair to send their daughter Rosie to college. Ma competes in baking and Pa enters a trotter in a horse race, while Rosie takes up with handsome young Marvin Johnson.

The Kettles and their fifteen children are about to be evicted from their rundown rustic home when Pa wins the grand prize by coming up with a new tobacco slogan. Birdie Hicks is jealous of the family's new wealth, which includes a completely automated modern home, and accuses Pa of stealing the slogan. Reporter Kim Parker proves Birdie wrong and marries Tom Kettle.

A private detective foils the plans of villains attempting to take over Panamanian oil fields while he searches for a valuable map hidden in plain sight.