The kids have to face the 4th grade, and they're not too happy about it. Cartman cooks up a scheme to go back in time to return to the 3rd grade where things were fun and easy. Two geeks help them rig Timmy's wheelchair into a working time machine and send Timmy on the trip of his life!
Keywords: adult-animation , adult-humor , best-friend , censorship , colorado , controversial , elementary-school , group-of-friends , hilarious , irreverent , offensive , parody , satire , sitcom , social-satire , absurd , watch-series-online , amused , joyous