Season 4

1. Exit 9B

2012-10-01 · 22m

Mordecai and Rigby must save the park after the rest of the gang are brainwashed.

2. Starter Pack

2012-10-08 · 11m

Mordecai and Rigby want to stop Muscle Man from screwing with Thomas.

3. Terror Tales of the Park II

2012-10-15 · 11m

While on their drive to a Halloween party, Mordecai and Rigby tells scary stories to Benson, Pops, Skips, Muscle Man, High Five Ghost and Thomas.

4. Pie Contest

2012-10-22 · 11m

Mordecai and Rigby want to prove to Benson that they can be judges at the pie contest.

5. 150 Piece Kit

2012-10-29 · 11m

Benson wants to prove that he performed a famous drum solo.

6. Bald Spot

2012-11-12 · 11m

Muscle Man wants to hide his bald spot at all costs.

7. Guy's Night

2012-11-19 · 11m

Pops wants to beat the milk challenge to prove he’s one of the guys.

8. One Pull Up

2012-11-26 · 11m

Rigby has never been known for his upper-body strength, so when the park employees have to go into the doctor and get their physicals, Rigby has trouble doing even one pull up, and so he must find a way to do so or get fired.

9. The Christmas Special

2012-12-03 · 22m

The house is decorated, the guests have arrived and it seems like it's the season to save Christmas when the gang finds themselves faced with the task of destroying a present for Santa that has the potential to destroy them and the holiday.

10. T.G.I. Tuesday

2013-01-07 · 11m

It’s Margaret’s last night of freedom before she transfers to a new college. So Mordecai, Rigby and Eileen decide to surprise her with the biggest party of her life. What could possibly go wrong?

11. Firework Run

2013-01-14 · 11m

After Mordecai, Rigby and Muscle Man squander the fireworks that Benson had purchased for an upcoming event at the park, the three have to go and find more to replace them before Benson blows a fuse and they lose their jobs.

12. The Longest Weekend

2013-01-21 · 11m

Muscle Man tries not to contact Starla for an entire weekend.

13. Sandwich of Death

2013-01-28 · 11m

Benson eats a magical, deadly sandwich that Mordecai and Rigby bought, so the trio must travel with the restaurant's manager, Sensei, to find the cure.

14. Ace Balthazar Lives

2013-02-04 · 11m

Mordecai and Rigby want to reunite the band Adrenaline.

15. Do or Diaper

2013-02-11 · 11m

Muscle Man, Rigby and Starla are annoyed about Mordecai's awkward goodbye to Margaret so they try to get Mordecai to tell Margaret how he feels about her.

16. Quips

2013-02-18 · 11m

Skips intervenes to stop his cousin's bad jokes.

17. Caveman

2013-02-25 · 11m

When Mordecai and Rigby meet a caveman, they decide to put his unique prehistoric physique to good use: chugging cheese! But could this caveman actually turn out to be a Neanderthal nuisance?

18. That's My Television

2013-03-04 · 11m

Mordecai and Rigby help their favorite '80s sitcom star, RGB2, escape from the studio lot and into the mountains so he can avoid starring in a revival of his show.

19. A Bunch of Full Grown Geese

2013-03-25 · 11m

Mordecai and Rigby have to get rid of some geese that are causing problems at the park.

20. Fool Me Twice

2013-04-01 · 11m

Mordecai and Rigby want to win the grand prize on a Japanese game show.

21. Limousine Lunchtime

2013-04-08 · 11m

Rigby stains Mr. Maellard's expensive white limousine with a meatball sub, so the guys have to clean it before Mr. Maellard gets back from vacation.

22. Picking Up Margaret

2013-04-15 · 11m

Mordecai offers Margaret a ride to the airport.

23. K.I.L.I.T. Radio

2013-04-22 · 11m

Muscle Man wants a local radio station to play the song he wrote for Starla.

24. Carter and Briggs

2013-05-06 · 11m

The guys enter a donut contest in hopes of winning a cameo on their favorite cop show.

25. Skips' Stress

2013-05-13 · 11m

Skips has to lower his stress for health reasons.

26. Cool Cubed

2013-05-20 · 11m

Thomas must save his brain after he chugs a slushy that freezes his brain.

27. Trailer Trashed

2013-05-27 · 11m

Muscle Man tries to save his trailer after it fails a health inspection.

28. Meteor Moves

2013-06-10 · 11m

Mordecai plans to kiss Margaret at a meteor shower.

29. Family BBQ

2013-06-17 · 11m

Mordecai tries to shake hands with Margaret's father.

30. The Last LaserDisc Player

2013-06-24 · 11m

The guys need to obtain a LaserDisc player in order to watch the director's cut of a cult classic.

31. Country Club

2013-07-01 · 11m

Mordecai and Rigby have to rescue the golf cart from a bunch of rich people at a country club.

32. Blind Trust

2013-07-15 · 11m

Benson must trust Mordecai and Rigby to help get him down a mountain.

33. World's Best Boss

2013-07-15 · 11m

The park employees want to give Benson a special mug.

34. Last Meal

2013-07-22 · 11m

Muscle Man wants to binge on his favorite foods before going on a diet.

35. Sleep Fighter

2013-07-29 · 11m

The park guys must help Muscle Man to stop fighting in his sleep.

36. Party Re-Pete

2013-08-05 · 11m

Mordecai and Rigby must save Benson from an evil party company.

37. Steak Me Amadeus

2013-08-12 · 11m

Mordecai wants to ask Margaret to be his girlfriend.