Zenon Ziembiewicz comes back to his hometown after graduating from the university in Paris. He gets entangled in a love triangle with educated young lady Elzbieta and a common country girl Justyna who gets pregnant.
The underage Rosemarie is still too young to run her inherited farm by herself; but she's more than aware that her foster father and the farm's administrator, the farmer Schlieker, is constantly skimming from the farm's finances to line his own pocket.
Three mice run, cavort, sing and dance around in the stores and restaurants a big city at night. They wind up in a café for an early-morning snack and stocking up on food provisions before they return to the safety of their den beneath a man-hole cover in the street.
In an effort to impress Darla, Alfalfa tells her that he's a famous bear trainer. Little does he know that Darla's father owns a circus - and a bear costume.
A western town is being overrun and ruled by a gang of outlaws led by Bart (John Merton). Former Ranger Tim (Tim McCoy) is called out of retirement and assigned to clean up the gang.
The Cabin Kids, in between song and dance numbers, are at the county fair with intentions, fair or foul, of helping Mammy win the Pancakes cooking contest.