The daily surreal adventures of a blue jay and raccoon duo that attempt to deal with their mundane jobs as groundskeepers at the local park.
In the distant future, Rigby leads Benson, Skips, Hi-Five Ghost, Muscle Man, and Pops against an evil man named Mr. Ross who is erasing time. They find Mr. Ross' weapon is guarded by a future version of Mordecai, who attempts to kill Rigby for a transgression he did in the past.