After finding out their new game isn't as awesome as they thought, Mordecai and Rigby try to get their money back which the store manager refuses to give to them. In retaliation, Mordecai and Rigby sabotage the sale of the game so much they are pulled into the game by the manager and must defeat him to get their freedom and their refund.

Mordecai owes Rigby big time when he agrees to go on a double date with him.

Mordecai and Rigby go to unbelievable lengths to beat Muscle Man and High Five Ghost in a radio contest to win a car.

Mordecai and Rigby try to clean the fountain when Benson told them to but they find a bunch of baby ducks. So Benson and the two say to give it away. But when they imprint on Rigby, they start to do learn from Rigby on fighting and playing. Mordecai and Rigby think they should keep them after it learns from Rigby. But the duck collector tries to get away with the ducks.

Mordecai and Rigby have to fix Benson’s car before he finds out they broke its window.

Rigby buys a device that unfairly divides his share of the room to avoid cleaning his mess in it.

Mordecai and Rigby are charged with bringing Benson tortillas.

Mordecai, Rigby, Muscle Man, and Hi-Five Ghost try to get stuntman licenses so they can perform for Timmy's stuntman-themed birthday party.

Skips tells Mordecai and Rigby the story of how he became immortal.

Skips tells Mordecai and Rigby the story of how he became immortal.

Mordecai and Rigby revive their band with the rest of the group and compete in a battle of the bands to win an air conditioner during a massive heatwave.

Pops strives to learn how to surf in order to reconnect with nature after havin a bad day with it.

Mordecai and C.J. want to go on a romantic date.

The park workers tell scary stories to keep Muscle Man awake while driving to visit his mother on Halloween.

The park workers tell scary stories to keep Muscle Man awake while driving to visit his mother on Halloween.

Muscle Man gives the group a list of things that he wants to do before "the end." When everyone realizes he is serious, they decide to make Muscle Man's final wishes come true.

Rigby plans to surprise Eileen by setting up her new flat screen TV for her, but things take a turn when Eileen's roommate interferes.

Mordecai and Rigby are determined to win a happy birthday song contest so they can get a year's supply of cake.

Mordecai tries to avoid further relationship problems when he attends Margaret's 1000th chopper flight party for her father.

Mordecai and Rigby have to remember all of their food challenges so that they can eat a 10ft sandwich.

The group helps Muscle Man and Starla on their wedding day. Still, it's Mordecai, whose relationship is in danger when Margaret gets invited, and an awkward speech leads to a final falling-out between Mordecai and CJ.

Benson is determined to prove he was right about the date of the "Dome Experiment," a month-long experiment in which the park workers are locked in a bio-dome. After the dome comes a day early, all signs point to a possible conspiracy over the dome's real intentions.

Benson tries to spice up the park's annual Halloween party by renting a wish-making machine.

Mordecai and Rigby want to help Party Horse get back together with his girlfriend.

Rigby goes back to high school to graduate and earn his diploma, something he keeps secret from Eileen. But Eileen becomes suspicious when Rigby repeatedly cancels their dates.

Rigby must write a speech for his high school graduation that will be broadcast on national TV. Meanwhile, Mordecai sinks into a depression over how Rigby is now more successful than he is, and the park workers finally find out the true intentions of the dome experiment.

Chance Sureshot loses his wallet and is enclosed in a robot's bubble until he can pay for his food. In order to free him, Mordecai, Rigby, Toothpick Sally and Recap Robot must travel to the Mantis Planet to get it back.

Mordecai and Rigby try to avoid spoilers of their favorite show, but Benson wants to spoil it to get revenge on them for forgetting to vacuum the house.

The guys gather in the house on the Dome and tell scary Halloween stories just like ol’ times, only this Halloween, the stories have an extra terrifying, science fiction twist.

The guys gather in the house on the Dome and tell scary Halloween stories just like ol’ times, only this Halloween, the stories have an extra terrifying, science fiction twist.

The guys celebrate their first Christmas in space by opening presents, eating peppermint bark and telling Christmas stories. Benson wants the stories to be more Christmasy but the guys keep adding scary elements, which infuriate their boss.

The guys celebrate their first Christmas in space by opening presents, eating peppermint bark and telling Christmas stories. Benson wants the stories to be more Christmasy but the guys keep adding scary elements, which infuriate their boss.

Despite all of his training, Pops still does not want to fight, so he sets up a meeting with Anti-Pops to settle things peacefully.

Allies from both sides rally together for the epic fight. However, Pops and Anti-Pops are once again at a stalemate. Mordecai and Rigby are forced to jump between the two factions.