Regular Show: Season 4

Episode 1: Exit 9B 2012-10-01 | 22 min Mordecai and Rigby must save the park after the rest of the gang are brainwashed. Episode 2: Starter Pack 2012-10-08 | 11 min Mordecai and Rigby want to stop Muscle Man from screwing with Thomas. Episode 3: Terror Tales of the Park II 2012-10-15 | 11 min 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. Episode 4: Pie Contest 2012-10-22 | 11 min Mordecai and Rigby want to prove to Benson that they can be judges at the pie contest. Episode 5: 150 Piece Kit 2012-10-29 | 11 min Benson wants to prove that he performed a famous drum solo. Episode 6: Bald Spot 2012-11-12 | 11 min Muscle Man wants to hide his bald spot at all costs. Episode 7: Guy's Night 2012-11-19 | 11 min Pops wants to beat the milk challenge to prove he’s one of the guys. Episode 8: One Pull Up 2012-11-26 | 11 min 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. Episode 9: The Christmas Special 2012-12-03 | 22 min 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. Episode 10: T.G.I. Tuesday 2013-01-07 | 11 min 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? Episode 11: Firework Run 2013-01-14 | 11 min 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. Episode 12: The Longest Weekend 2013-01-21 | 11 min Muscle Man tries not to contact Starla for an entire weekend. Episode 13: Sandwich of Death 2013-01-28 | 11 min 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. Episode 14: Ace Balthazar Lives 2013-02-04 | 11 min Mordecai and Rigby want to reunite the band Adrenaline. Episode 15: Do or Diaper 2013-02-11 | 11 min 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. Episode 16: Quips 2013-02-18 | 11 min Skips intervenes to stop his cousin's bad jokes. Episode 17: Caveman 2013-02-25 | 11 min 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? Episode 18: That's My Television 2013-03-04 | 11 min 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. Episode 19: A Bunch of Full Grown Geese 2013-03-25 | 11 min Mordecai and Rigby have to get rid of some geese that are causing problems at the park. Episode 20: Fool Me Twice 2013-04-01 | 11 min Mordecai and Rigby want to win the grand prize on a Japanese game show. Episode 21: Limousine Lunchtime 2013-04-08 | 11 min 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. Episode 22: Picking Up Margaret 2013-04-15 | 11 min Mordecai offers Margaret a ride to the airport. Episode 23: K.I.L.I.T. Radio 2013-04-22 | 11 min Muscle Man wants a local radio station to play the song he wrote for Starla. Episode 24: Carter and Briggs 2013-05-06 | 11 min The guys enter a donut contest in hopes of winning a cameo on their favorite cop show. Episode 25: Skips' Stress 2013-05-13 | 11 min Skips has to lower his stress for health reasons. Episode 26: Cool Cubed 2013-05-20 | 11 min Thomas must save his brain after he chugs a slushy that freezes his brain. Episode 27: Trailer Trashed 2013-05-27 | 11 min Muscle Man tries to save his trailer after it fails a health inspection. Episode 28: Meteor Moves 2013-06-10 | 11 min Mordecai plans to kiss Margaret at a meteor shower. Episode 29: Family BBQ 2013-06-17 | 11 min Mordecai tries to shake hands with Margaret's father. Episode 30: The Last LaserDisc Player 2013-06-24 | 11 min The guys need to obtain a LaserDisc player in order to watch the director's cut of a cult classic. Episode 31: Country Club 2013-07-01 | 11 min Mordecai and Rigby have to rescue the golf cart from a bunch of rich people at a country club. Episode 32: Blind Trust 2013-07-15 | 11 min Benson must trust Mordecai and Rigby to help get him down a mountain. Episode 33: World's Best Boss 2013-07-15 | 11 min The park employees want to give Benson a special mug. Episode 34: Last Meal 2013-07-22 | 11 min Muscle Man wants to binge on his favorite foods before going on a diet. Episode 35: Sleep Fighter 2013-07-29 | 11 min The park guys must help Muscle Man to stop fighting in his sleep. Episode 36: Party Re-Pete 2013-08-05 | 11 min Mordecai and Rigby must save Benson from an evil party company. Episode 37: Steak Me Amadeus 2013-08-12 | 11 min Mordecai wants to ask Margaret to be his girlfriend.