A wealthy society matron treats the underprivileged kids of the gang to an outing at her country estate. The gang turns both the journey and the visit at the farm into a chaotic adventure.

The gang sets up their own junior fire department after mistaking a bootleg still for a boiler. Steam from an open window is mistaken for fire, and they rush off to put it out, arousing the attention of the local cop, who smells the liquor.

Mary Jane's mother owns the village store, and finds her business suffering because her landlord runs a competing shop right across the street and is threatening eviction. Ernie and Pat, with the help of their pets, lure the skinflint's customers away by various means.

Ernie stumbles into the secret headquarters of the J.J.J.'s (the Jesse James Juniors), and spins a tale in which he and Jackie save rich girl Mary Jane from a gang of kidnappers.

The various boys of the gang each manage to escape their responsibilities for the day, meeting up to build a raft for their pirate game.

A new kid moves into town and is soon bullying little Jackie. When the gang finds this out, they beat up on the kid, only to discover that his father is a cop. Meanwhile, the police are after a criminal named Red Mike, and the gang mistakenly thinks they're the ones being chased.

Ernie takes advantage of a feud between Mickey and Jack, becoming a fight promoter and putting the two rivals in a boxing ring.

When the cobbler, Mr. Tuttle, receives his back pension, he takes the gang for a car trip out to the country. When the car breaks down, some of the kids go exploring in a nearby barn, only to meet up with a criminal named Dandy Dick.

After being chased away from the county fair, the gang decides to open their own junior version of the fair, complete with wild animal displays, rides, and animal stunts. To top it off, they give a live performance set inside a giant movie frame, and impersonate several popular film stars of the day.

The boys switch places with some runaways who are about to be taken back to San Francisco. The welfare lady in charge of taking them back sprains her ankle and enlists her child-hating boyfriend to escort them. The journey, to say the least, is a disaster.

The boys, along with kindly old Pop Malone, decide to escape from Mother Malone's boarding school, where they are subjected to Mother Malone's nasty temperament. While on the lam, they meet up with an unfriendly bootlegger.

While the boys are playing their baseball game, a couple living nearby offer to take care of Jack's baby sister, Imogene. Eventually, the gang goes into their house when they realize there's a litter of puppies in there. By this time, however, the doctor has realized that one of the servants has a contagious disease and decides to quarantine the place, giving the gang a chance to turn the house into a disaster area.

The gang meets up with the head of a vaudeville troupe, who enlists them to help him out when his co-stars have abandoned him. They manage to make a complete wreck of the act, and Jack's bugs get loose in the auditorium, putting the audience into an itching frenzy.

After Mary leaves the gang's mock-war to go do some work at the local movie studio, the boys decide to break into the pictures as well, but are chased away. They manage to sneak in and sabotage a film-in-progress, adding their own unusual footage.

Joe arrives as the new boy in school, and the boys decide to initiate him into their secret club, the Cluck Cluck Klams. During the proceedings, a couple of auto thieves break into the barn, and when they make their getaway, Farina and Jackie are in the back seat.