Mr. Dithers invites the Bumsteads on a South American cruise. Somehow Dagwood winds up as the female drummer in the ship's band, while Penny Singleton gets to show off her Broadway background in some lively musical numbers.

Al Stewart and Wilbert are magicians doing a stage act when they run into Wilbert's cousin, Dorothy McCoy. They find out that Wilbert's grandfather, Squeeze-box McCoy, had treasure hidden in the hills of Kentucky, which they go to find.

Two bumbling plumbers are hired by a socialite to fix a leak. A case of mistaken identity gets the pair an invitation to a fancy party and an entree into high society. As expected, things don't go too smoothly.

Opera student Annette Monard meets composer Jonathan Street, and in a buoyant, alcohol-fueled evening, the couple marries. Sincerely falling in love, Jonathan encourages the talented Annette to sing — yet when his own attempt at an opera fails, Jonathan lashes out at Annette's success. Despite her husband's jealousy, Annette embarks on a successful career that allows her to secretly fund Jonathan's opera, bringing their marriage to a crisis.

The Cattlemen's Association has called in the Mesquiteers to find cattle rustlers. They get Tex Riley to pose as Stony so Stony can arrive posing as a wanted outlaw. This gets Stony into the gang of rustlers and he alerts Tucson and Lullaby as to the next raid. But Hartley is on hand and unknown to anyone is the rustler's boss and he joins the posse with a plan that will do away with the Mesquiteers.

Protecting himself in an attack by rustlers, Rancher Steve Holden believes he has killed one of the attackers, young Bud Mathews, who in reality has warned Holden of the rustlers' approach. Unaware that Mathews was actually killed by rustler boss Cass Barton, Holden heads out to Mathews' home town where he plans to tell the boy's family of his death but instead uncovers a plan by a local businessman to force Mathews' father out of his ranch.

The president of a settlement-house group puts on a benefit variety show.

The daughter of a formerly wealthy man tries to get a job singing on a radio show, but gets involved in a feud and murder.

A young girl goes to work as a live-in caretaker for a spooky old woman. She doesn't know that every night, the woman drains some blood from her to feed her strange plant.

When the local Banker jumps the Blaine's claim, they have men rob the bank to retrieve their money. When the men try to double-cross the Blains, a gunfight erupts and Jim Blaine gets away with the money. Mountie Bob McDonald gets Jim Blaine to return the money. Bob thinks the Banker was really behind the robbery and now uses the money to try and lure him into a trap.