Regular Show: Mordecai

Mordecai and Rigby decide to make prank phone calls. They try to prank the Master Prank Caller numerous times, although they fail to fool him (and only make him increasingly annoyed).

Mordecai and Rigby are assigned to get a grilled cheese sandwich for Benson while playing a game to see who is the better liar.

When Mordecai and Rigby order T-shirts for their non-existent band (Mordecai and the Rigbys), Margaret mistakes them for actual musicians.

When Benson takes the night off, Mordecai and Rigby decide to throw a party. But when it gets off on a rocky start, they seek the help of Party Pete to get their party going.

Mordecai and Rigby are playing a video game, and they make a bet that the person who loses has to style their hair like their video game character. However, Rigby feigns a stomachache and asks Mordecai to get him some water. During this time, Rigby cheats and disconnects Mordecai's controller, causing him to lose.

Mordecai and Rigby beat Muscle Man and High-Five Ghost in a cart race, and pick up some girls who have some flat tires. However, they soon destroy the car, so Benson punishes them by taking away their cart privileges and forcing them to ride kiddie bikes. Angered at the "uncoolness" of the bikes, Mordecai protests the decision due to them taking away their "cool appeal".