In the episode "Regular Show: Fun Run", Mordecai and Rigby participate in a fun run organized by Benson to raise money for the park. However, things take a turn for the worse when they accidentally unleash a giant, destructive floating head that starts wreaking havoc.
As chaos ensues, Mordecai and Rigby must find a way to stop the floating head and save the park before it's too late. With the help of their friends and some quick thinking, they come up with a plan to defeat the monstrous creature and restore peace to the park.
"Regular Show: Fun Run" is a thrilling and action-packed episode that showcases the hilarious antics of Mordecai and Rigby as they face off against a formidable foe. Will they be able to save the park and emerge victorious in the end? Watch to find out!