Original airdate: October 18, 2010 After eating a perfect grilled cheese, Mordecai and Rigby become addicted. They travel to a magical “Cheese Land” to find the recipe, but must battle an evil wizard.
Original airdate: October 25, 2010 Rigby tries to impress a girl by claiming he has unicorns. When real unicorns show up, they trash the park. Mordecai and Rigby must banish them with a magical rainbow.
Season 1 originally had 12 episodes. Some streaming platforms combine the pilot or specials, but this is the standard season 1 list. regular show season 1 all episodes
Original airdate: November 1, 2010 Mordecai and Rigby prank-call the local TV station. The prank unleashes a sinister duo (The Prank Masters) who trap the park workers in a dimension of endless pranks.
Original airdate: September 13, 2010 Tasked with setting up chairs for a corporate retreat, Mordecai and Rigby try using a cloud of “un-set-up-able” chairs to finish faster. The chairs rebel, forming a giant chair monster. Original airdate: October 18, 2010 After eating a
Original airdate: September 20, 2010 The duo needs money for concert tickets. They drink an extreme amount of coffee to work faster, becoming hyperactive and destructive. Their caffeine crash nearly ruins everything.
Original airdate: September 6, 2010 Mordecai and Rigby find a magical keyboard that can control reality by typing words. They abuse it to avoid work, leading to chaos when Rigby types “pizza” and a giant sentient pizza attacks the park. When real unicorns show up, they trash the park
Here’s a concise content overview for Regular Show Season 1 (2010), including episode titles, original airdates, and brief plot summaries.