Season 4
23 episodes · Nov 25, 1978
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- S4E1
The Drop-Ins (1)
Nov 25, 197830mGabe announces that he is now the vice-principal and Mr. Woodman is the principal. The Sweathogs are pleased, until Gabe gets strict. After Vinnie visits the school to tell the gang he's dropped out, the other Sweathogs decide to follow in his footsteps.
- S4E2
The Drop-Ins (2)
Sep 18, 197830mWith Barbarino now an ordlery at a hospital, the Sweathogs try to get jobs there, too. Meanwhile, Kotter tries to get the gang to return to school.
- S4E4
Don't Come Up and See Me Sometime
Sep 11, 197830mVinnie throws the Sweathogs out of his new apartment.
- S4E5
Once Upon a Ledge
Oct 2, 197830mHorshack saves a lonely, overlooked girl named Mary Johnson from commiting suicide by jumping off the ledge of the school.
- S4E6
The Sweatmobile
Sep 11, 197830mThe Sweathogs remember how they tried to buy a used car from Vinnie's uncle.
- S4E7
Barbarino's Boo-Boo
Oct 21, 197830mWhen Mr. Woodman comes to Vinnie's hospital for an operation, Vinnie loses him and he and the other Sweathogs try to find him.
- S4E8
X-Rated Education
Oct 28, 197830mThe gang is liable to get in trouble when the x-rated film Carvelli brought into school is accidentally mixed up with a film on sexual education.
- S4E9
The Barbarino Blues
Nov 4, 197830mVinnie becomes depressed when it seems that he has lost his way with women.
- S4E10
Washington's Clone
Nov 11, 197830mA younger student begins to imitate Freddie, not much to Freddie's liking.
- S4E11
Frog Day Afternoon
Oct 9, 197830mAfter Horshack refuses to disect a frog in class, his grade is in jeopardy.
- S4E12
A Little Fright Music
Dec 2, 197830mThe Sweathogs opt to change Mr. Woodman's tired old school song.
- S4E16
The Goodbye Guy
Feb 10, 197930mMr. Woodman's niece Kelly is babysitting for the Kotters when Juan drops by the apartment. The two abruptly fall in love and decide to move in together, but the romance begins to crumble when it seems that they can't respect one another's interests.
- S4E17
Come Back, Little Arnold
Feb 24, 197930mTo get up his nerve with Mary, Carvelli offers Arnold liquor. He doesn't like the idea at first, but as time goes on, he becomes addicted to drinking; developing a scary and unlikable new personality that only turns Mary away.
- S4E18
The Sweat Smell of Success
Mar 3, 197930mConvinced that the school newspaper is too dull, Juan sets out to turn it into a tabloid, bringing down his friends' names in the process.
- S4E19
The Gang Show
Mar 17, 197930mFreddie and Juan plan to do an act together for the upcoming talent contest, while Carvelli has some bribed judges up his sleeves. Arnold and Beau take over as judges, leaving Murray in the third spot.
- S4E20
Oo, Oo, I Do (1)
May 25, 197930mArnold's relationship with Mary gets serious. Then he finds out he has to move and leave the school. Upset, Arnold decides to propose marriage to Mary. She accepts.
- S4E21
Oo, Oo, I Do (2)
May 25, 197930mArnold gets upset when the other Sweathogs tease him about not being able to provide for Mary, and he vanishes. Mary finds him and convinces him not to worry, and the two get married.
- S4E23
The Breadwinners
Jun 8, 197930mWhile Horshack adjusts the married life, Epstein sets up an interview for a job. Washington gets the job before Epstein, unaware that it's the same job. The two get into a fight and end up in a gym ready to box.