Disappointed after not receiving the customary tri-monthly $5.00 raise, Laverne and Shirley write a nasty letter to their boss. At the end of the day, it is revealed that they DID get a raise, after all, but also that the nasty letter is sitting, unopened, on the boss's desk - waiting to be read the next morning. Desperate to save their jobs, Laverne and Shirley go home and try to hatch a plan to get that letter back, before morning.

The girls recruit Lenny, Squiggy, and Carmine to help them pull off this mission. Lenny and Squiggy will drive the getaway car, and act as lookouts, while Carmine, Laverne, and Shirley will sneak through the air vents, and make their way into the boss's office. They will carefully maneuver around the alarm system, retrieve the letter, and be on their way. No one shall be the wiser. Of course, when they try to put the plan into action, our heroes run into some obstacles along the way, and quickly realize that this isn't going to be as easy as they thought.

The girls finally get a job in California in the gift wrapping department at Bardwell's Department Store. On their first day on the job, Laverne gets tipsy after eating candy laced with alcohol.

Laverne asks Carmine to give her singing lessons so that she can sing for Hoot Night at Cowboy Bill's.

The girls almost marry tow rock stars from Britain after eating some brownies laced with marijuana.

The girls turn to Edna for advice when their dates expect ""rewards"".

Lenny and Squiggy appear in on the television show, The Dating Game.

Sgt. Plout goes AWOL and decides to hide out at the girl's apartment.

After she has to miss a party because of her broken leg, Laverne sits at home alone and falls asleep while watching It's A Wonderful Life on TV. She then dreams what life would be like for her friends and her family if she had never been born.

The girls are hired to play stunt women in a Troy Donohue movie.

In order to pay Shirley back some of the money she owes her, Laverne agrees to be the target in Sonny's knife throwing act at Cowboy Bill's grand opening. When Sonny breaks his arm and is unable to do the act, Shirley takes over throwing the knives at Laverne, which makes Laverne extremely nervous since she knows that Shirley is already upset with her.

There is a dispute over who should pay the bill when Lenny and Squiggy trash a hotel room on their way to California and try to blame it on Laverne and Shirley. This leads to the telling of two different versions of what happened that night: one where Lenny and Squiggy are chasing the girls all night, and the other where the girls are feeling feisty and chase the boys around the room.

Stuck at home on a rainy night with nothing to do, the gang decides to play a game of truth or dare. Within minutes, everybody ends up arguing with each other.

After being fired from the brewery, the girls decide to pack up and move out to California. The only way they can afford to get out there is to have Lenny and Squiggy drive them there in an old ice cream truck.

The girls are hired to house sit at the Malibu beachfront mansion of the owner of the Cowboy Bill's chain of restaurants. While he is away for the weekend, the girls throw a beach party which gets gate crashed by a gang of bikers. The girls manage to clean the place up just in time, but the owner's talking pet parrot threatens to spill the beans.

Because of Squiggy's forgetfulness, Laverne and Shirley must play all the parts in Shirley's play ""Murder In Mother Goose Land"", which a Broadway producer attends.

The girls are ready to return to Milwaukee after experiencing an earthquake on their first night in California.

Shirley finally gets to date a Doctor. The trouble is she looks exactly like his old wife.

The girls throw Frank and Edna a fifth wedding anniversary party at their trailor, which has a broken trailor jack.

Lenny and Squiggy imagine that they are the stars in a whole series of flashback black and white silent movies.

After learning that Laverne fears for his safety, Sonny quits his job as a stuntman and takes a job selling insurance.

Carmine's new stand up comedy act is not such a big hit with his friends when he starts to make fun of them in turn.