Troy Baker

Skips’ tells Mordecai and Rigby how he became immortal. 2015 Cartoon Network

In a half-hour special, 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.

Mordecai and Rigby try to track down a mysterious graffiti artist who has been tagging the park.

Rigby's feelings are hurt when Mordecai chooses to team up with Skips to try to win the grand prize in a video game tournament.

Can Clarence, Jeff and Sumo manage to have a good time at “Pizza Swamp” Arcade with only one dollar to spend between them? Yes.

Skip takes time off work to fight an enemy of the Guardians of Eternal Youth, leaving Mordecai and Rigby doing Skips' duties at the park.