Mordecai and Rigby must bring Benson back from Dumptown USA or he will fire them both.
When Benson does not win an award for "Park Manager of the Year", the others try to make him feel better.
When Rigby ruins Maellard's fancy lunch, either he or Benson must write a letter of resignation.
Margaret wants to host a weekly segment on the local nightly news.
Benson is determined to prove he was right about the date of the "Dome Experiment."
In spite of a bad track record, Rigby is determined to give Mordecai a great birthday gift.
Mordecai and Rigby must get Benson to stop watching cat videos.
After being struck by lightning, neither Muscle Man or High Five Ghost are able to remember each other.
Mordecai and Rigby want to help Party Horse get back together with his girlfriend.
After staying awake for two nights, Mordecai and Rigby must get their sleep cycle back on track.
Rigby and Eileen get called away to Don's black belt ceremony forcing Mordecai and Margaret to hang out alone.
Mordecai and Rigby have to take Benson's new pet pig back to his apartment.
Rigby doesn't think he's smart enough for Eileen, so decides to finally get his high school diploma.
In order to get high school credits, Rigby has to pass a foreign language class taught by Benson in China.
Rigby must create a crazy fake plan in order to surprise Eileen for the first time ever.
Pops wants to appear on his favorite game show, but instead gets involved in the TV industry.
Rigby wants Eileen to go snow tubing, but she is scared of it.
Benson tries to impress the Park Managers' Association and win the big chili cook-off.
The guys must return a VHS copy of their favorite horrible movie to avoid paying an astronomical late fee.
Rigby's nemesis returns and tries to ruin his chances of passing gym class and graduating.
The guys plan to give Thomas an epic night before he goes into hiding.
Rigby and Mordecai unplug some cables in an old synthesizer; they travel back to the planet of Synthos to bring Gary back to life.
After Rigby wins a king-size bed, he gets rid of his trampoline.
In order to prove that he is more than just "super buff," Muscle Man gets a job in a corporate office.
When Maellard expects a delivery, he needs Mordecai and Rigby to wait for the important package at his mansion.
Rigby must sneak his dad's car out of the garage and return it unnoticed in order to take Eileen to the prom.
Mordecai and Rigby must prevent a giant red button from being pushed.
The guys must get Muscle Man's favorite shirt back on him before he awakes.
Pops thinks that he's a wizard trapped in medieval times, and he wants to go back home.
Pops wants to see his favorite planet when the guys sleep outside.
In order to ask out one of the Dome scientists, Benson wants to sneak his crush a bucket of chicken wings.
The guys hope to be VIPs at Cheeser's.
Eileen and the others want to watch baby sea turtles hatch and descend into the ocean.
The Discmasters must put an end to the Format Wars.
Mordecai and Rigby are determined to win a happy birthday song contest.
Benson wants to feel better about himself.
Mordecai and Rigby go on a quest to find a rare, golden video game patch.
Mordecai tries to avoid further relationship problems when he attends Margaret's 1,000th chopper flight party for her father.
The guys are determined to help Party Horse pass his U.S. history test.
The guys tries to find different ways to keep the park open after Mr. Maellard announces his plans to shut down the park due to lack of attendance.
Mrodecai and Rigby go on an epic adventure while fixing a garage door.
The park guys want to get rid of a very large bird in the park.
When Death Kwon Do sensei's life is threatened, Mordecai and Rigby want to help save him.
Mordecai and Rigby want to finish a ten-foot sub.
The gang helps Muscle Man and Starla on their wedding day, but it's Mordecai whose relationship is in danger when Margaret gets invited and an awkward speech leads to a falling-out between Mordecai and CJ.
Before his high school reunion, Rigby hopes to accomplish something he said he would do.
The guys must retrieve the park video camera from the bottom of the crash pit.
Mordecai and Rigby are in charge of changing the clocks in the park for daylight saving time.
Mordecai and Rigby help Benson replace an autographed electric guitar.
Mordecai and Rigby compete in a battle of the bands to win an air conditioner.
When the guys damage an important painting of Benson, they must repair it.
Mordecai and Rigby must save the park when everyone else is brainwashed.
Mordecai and Rigby want to stop Muscle Man from screwing with Thomas.
Mordecai and Rigby tell scary stories while traveling to a Halloween party.
Muscle Man wants to spread his father's ashes at the Big Rig Museum.
Mordecai and Rigby spend one last day with the cart.
Muscle Man has to go out to a fancy dinner to impress his girlfriend's parents.
Mordecai and Rigby break the lock on Margaret's diary.
Mordecai and Rigby have to return an overdue VHS to the store so they won't be banned from renting new movies.
Mordecai and Rigby hope to impress Margaret and Eileen by getting a picture in death bear's cage.
Everyone wants to give Pops fuzzy dice for his birthday.
Mordecai and Rigby are tasked with picking up donuts for the morning meeting.
Mordecai finally tries to kiss Margaret.