Season 4

01 Exit 9B Episode 11st October 2012 Mordecai and Rigby must save the park after the rest of the gang are brainwashed. 02 Starter Pack Episode 28th October 2012 Mordecai and Rigby want to stop Muscle Man from screwing with Thomas. 03 Terror Tales of the Park II Episode 315th October 2012 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. 04 Pie Contest Episode 422nd October 2012 Mordecai and Rigby want to prove to Benson that they can be judges at the pie contest. 05 150 Piece Kit Episode 529th October 2012 Benson wants to prove that he performed a famous drum solo. 06 Bald Spot Episode 612th November 2012 Muscle Man wants to hide his bald spot at all costs. 07 Guy's Night Episode 719th November 2012 Pops wants to beat the milk challenge to prove he’s one of the guys. 08 One Pull Up Episode 826th November 2012 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. 09 The Christmas Special Episode 93rd December 2012 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 Episode 107th January 2013 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 Episode 1114th January 2013 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 Episode 1221st January 2013 Muscle Man tries not to contact Starla for an entire weekend. 13 Sandwich of Death Episode 1328th January 2013 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 Episode 144th February 2013 Mordecai and Rigby want to reunite the band Adrenaline. 15 Do or Diaper Episode 1511th February 2013 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 Episode 1618th February 2013 Skips intervenes to stop his cousin's bad jokes. 17 Caveman Episode 1725th February 2013 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 Episode 184th March 2013 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 Episode 1925th March 2013 Mordecai and Rigby have to get rid of some geese that are causing problems at the park. 20 Fool Me Twice Episode 201st April 2013 Mordecai and Rigby want to win the grand prize on a Japanese game show. 21 Limousine Lunchtime Episode 218th April 2013 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 Episode 2215th April 2013 Mordecai offers Margaret a ride to the airport. 23 K.I.L.I.T. Radio Episode 2322nd April 2013 Muscle Man wants a local radio station to play the song he wrote for Starla. 24 Carter and Briggs Episode 246th May 2013 The guys enter a donut contest in hopes of winning a cameo on their favorite cop show. 25 Skips' Stress Episode 2513th May 2013 Skips has to lower his stress for health reasons. 26 Cool Cubed Episode 2620th May 2013 Thomas must save his brain after he chugs a slushy that freezes his brain. 27 Trailer Trashed Episode 2727th May 2013 Muscle Man tries to save his trailer after it fails a health inspection. 28 Meteor Moves Episode 2810th June 2013 Mordecai plans to kiss Margaret at a meteor shower. 29 Family BBQ Episode 2917th June 2013 Mordecai tries to shake hands with Margaret's father. 30 The Last LaserDisc Player Episode 3024th June 2013 The guys need to obtain a LaserDisc player in order to watch the director's cut of a cult classic. 31 Country Club Episode 311st July 2013 Mordecai and Rigby have to rescue the golf cart from a bunch of rich people at a country club. 32 Blind Trust Episode 3215th July 2013 Benson must trust Mordecai and Rigby to help get him down a mountain. 33 World's Best Boss Episode 3315th July 2013 The park employees want to give Benson a special mug. 34 Last Meal Episode 3422nd July 2013 Muscle Man wants to binge on his favorite foods before going on a diet. 35 Sleep Fighter Episode 3529th July 2013 The park guys must help Muscle Man to stop fighting in his sleep. 36 Party Re-Pete Episode 365th August 2013 Mordecai and Rigby must save Benson from an evil party company. 37 Steak Me Amadeus Episode 3712th August 2013 Mordecai wants to ask Margaret to be his girlfriend.