Ignoring Professor Farnsworth's orders to conserve fuel due to a rise in dark matter prices, Leela (Futurama) borrows the ''Planet Express Ship'' to enter a demolition derby after being insulted by rednecks. They win it, however the ship is wrecked, but due to botched laser eye surgery, the Professor only notices that the fuel has been used. As punishment, Leela is fitted with a shock collar to teach her anger management. Meanwhile, Bender (Futurama) finds Cubert Farnsworth and Dwight Conrad playing ''Dungeons & Dragons'' with their friends, but he cannot join in since, as a robot, he has no imagination. After several tries at imagining things, Bender manages to imagine himself as a medieval knight named "Titanius Anglesmith, fancy man of Cornwood" and enters the game. Unfortunately, he soon gets lost in his fantasy and goes on a rampage, resulting in his commitment to the Insane in the Mainframe.