Mordecai fears of being embarrassed by his mother when C.J. wants to come over for a family dinner.

After breaking off his friendship with Hi-Five Ghost over an embarrassing video, Muscle Man tells Mordecai and Rigby the story of how he and Hi-Five Ghost met back in high school when he was the big man on campus — until new kid Hi-Five Ghost comes in and usurps his title.

C.J. competes in a mini-golf tournament to win a card that permits people to cut in line at their favorite restaurant, but things hit a snag when C.J. has to compete against her overly-competitive father.

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.

Feeling unappreciated, Rigby quits his job at the park and gets a job with a moving company.

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.

Rigby suspects that Thomas is a Russian Spy, and when he finds out that it's true, it's up to him, Mordecai, and Benson to save the park from the KGB.

The park guys plan revenge on Muscle Man for giving them prank gifts every year during their White Elephant Gift Exchange.

Margaret returns to town for Eileen's Christmas party, which complicates things for Mordecai now that he is with C.J. -- and things get worse when Mordecai breaks C.J.'s heart.

Following the events of "Merry Christmas Mordecai," Mordecai tries to make things right with C.J. with the help of a shirtless street saxophonist, but each of his solutions make things worse.

Benson is invited to a park managers' luncheon by Gene, but his employees worry that it might be a trap.

Mordecai and Rigby are accidentally sent to Australia, so they have to look for a way to get to the airport, or else their boss Benson will have them fired for being late.

After his stockbroker is arrested on fraud charges, Muscle Man and Starla compete on a game show where couples compete to win an all-expenses-paid wedding.

Mordecai, Rigby, C.J., and Eileen head to the beach to watch the sea turtles hatch and head into the ocean, but they stumble upon a beachside resort where the wealthy are using turtles in their spas as a fountain of youth.

Mordecai, Rigby, Muscle Man, Hi-Five Ghost, and their boss Benson set out to stop an impending war coming from a new format, DVD.

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

Benson finds a suit in the park and begins wearing it to command respect - only to learn that the government made the suit, and corrupt leaders and business people will stop at nothing to get it.

Mordecai, Rigby and their boss Benson set out to find a rare video game patch from a old video game.

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

An alien pod crashes onto Earth and an alien horse known as Party Horse turns to Mordecai and Rigby to help him pass a U.S. History test.

The group tries to find different ways to keep the park open when Mr. Maellard announces his plans to shut down the park due to lack of attendance.

After Mordecai and Rigby crash their cart into the garage door, they have to replace it with help from Pops and the Eggscellent knight, or their boss Benson will have them fired.

In an homage to all things mecha anime, Mordecai and Rigby have to get rid of a cassowary in the park, which turns into an epic battle over merchandising rights when the baby ducks and full-grown geese return to enlist the help of the park workers to defeat a pair of lawyers and their iron-clad contracts.

In an homage to all things mecha anime, Mordecai and Rigby have to get rid of a cassowary in the park, which turns into an epic battle over merchandising rights when the baby ducks and full-grown geese return to enlist the help of the park workers to defeat a pair of lawyers and their iron-clad contracts.

After the events of "1000th Chopper Flight Party", C.J. comes over to forgive Margaret for what happened then (and what happened on "Merry Christmas, Mordecai") and invites her on a double date with her and Mordecai. The trouble is, Margaret lied about havin a boyfriend so she could calm C.J. down from her rage and must keep up the masquerade with the help of Eileen and Rigby's outlandish story of how they met.

Mordecai and Rigby fight with the power of death-kwon-do to help Sensei obtain a new stomach for his much need stomach transplant. But Sensei's trainee, Jimmy, wants it to himself.

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 going to fire Mordecai if Rigby can't bring him back from a bizarre land of dudes also known as Dumptown USA.

After Benson doesn't take home the award for Park Manager of the Year, the guys want to make him feel like a winner.

Rigby ruins Maellard's fancy lunch, and now he or Benson has to write a letter of resignation.

Margaret really wants to host a weekly segment on the nightly local news.

Benson is determined to prove he was right about the date of the "Dome Experiment".

Rigby is on a quest for the best birthday gift for Mordecai instead of usual lame ones.

Mordecai and Rigby must get Benson to stop watching cat videos.

Muscle Man and HFG get struck by lightning after a football match and lose their memory of being friends together. Will they be able to remember?

In Regular Show's fifth installment of "Terror Tales," Benson tries to spice up the park's annual Halloween party by renting a wishmaking machine.

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

Mordecai and Rigby mess up their sleeping cycle because of watching a TV marathon and try to fix it.

After Rigby invites Eileen for his big brothers karate presentation, Mordecai gets concerned and worried when hanging out with Margaret.

Benson gets a pet pig, and asks Rigby and Mordecai to look after it for him.

Rigby goes back to High School to study rocks, but wants to keep it a secret from Eileen.

In order to get high school credits, Rigby has to pass a foreign language class taught by Benson in China.

Rigby has to create a massively crazy fake plan in order to surprise Eileen for the first time ever.

Pops wants to go on his favorite game show "Win That Prize," but instead gets deeply involved in the television industry.

Rigby tries to get Eileen to go snow tubing.

Benson takes place in a chili cook off that needs to be made with ingredients less than $50

Mordecai, Rigby, Muscle Man, and High-Five Ghost are watching their favorite "Terrible-Horror" movie "Donut Factory Holiday". They have to get it back to the video store soon, but then they can't get it out of the VCR.

Rigby's high school nemesis returns and threatens to ruin his chances at passing gym class and graduating high school.

The bros go on a second adventure before Thomas goes into hiding as an agent.

Mordecai and Rigby unplug some cables to an old synthesizer, and they have to travel to the planet of Synthos with Skips in order to re-connect them and bring Gary back to life.

Rigby goes to the dump to get back his trampoline that he regrets throwing away.

Muscle Man is sick of being used for all the strong jobs at the park. So he decides to work at an office to show people he's smart too.

Mordecai and Rigby take a job for receiving Mr. Maellard's package, which is very important.

Rigby wants to take Eileen to his school prom.

The guys have to protect a large red button from being pushed.

The guys must get Muscle Man's favorite shirt back on him before he awakes.

Pops thinks he's mysteriously in medieval times and a wizard named Marvolo.

Mordecai, Rigby, and Pops go camping to see Pops' favorite planet through his telescope.

Benson try to win over a dome employee named Pam by sneaking her hot wings.

The head scientist puts Mordecai and Rigby on a 24-hour lock down inside the Dome, but they want to sneak out and see one of their favorite bands.

The guys hope to be VIPs at Cheeser's.

Mordecai and Rigby have to sneak into the dome laboratory to get Benson's keys back.

Rigby has to give a speech at his high school graduation. The speech will be broadcast live on a TV show called "Inspire America," and Rigby wants to make it memorable.

The park is miraculously sent into space.

A group of robots come to help the guys in the dome.

Benson retreats back to earth in an escape pod, but finds life on earth much more challenging.

Mordecai and Rigby want to buy some cool hover boots, but don't have enough space creds for them.

The guys need to retrieve a wallet on a hostile planet.

Muscle Man vows to prank someone.

The park crew helps Pops overcome his nightmares.

Mordecai and Rigby accidentally set loose a sinister brain.

When Benson is dumped by his girlfriend Pam, he goes on a quest for French Fries to fill the void left in his Heart.

Rigby must pass a safety test.

Mordecai and Rigby have to defend their case on a planet inhabited by ear people.

Mordecai and Rigby want to go to a reunion concert.

The guys race through space.

Mordecai and Rigby want to avoid spoilers of their favorite TV show.

The guys must escape a bad guy.

The guys get new beds.

Mordecai and Rigby enter a teleportation machine at the same time, causing unwanted effects that they hope to reverse before it's too late.

The gang find the Alpha Dome, the first dome ever sent to space. Inside, they find a bunch of people who believe it is 1690.

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.

Pops finds a tape that contain answers to his questions.

The rest of the gang learn something about Pops.

The guys help Pops train.

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.

Pops still doesn't wish to fight Anti-Pops and wants to peacefully work things out, but everyone else doubts kindness will stop Anti-Pops.

After the incident between Pops and Anti-Pops, the gang search out to find the Seer.

The gang try to support Pops for the imminent battle against Anti-Pops.

The crew arrive at Lolliland early, so they set up traps for Anti-Pops. Things seem to go off smoothly, but Anti-Pops is unfazed by their futile attempts.

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.