Homer buys a Canyonero, a giant all-terrain vehicle. At first he's excited about his new car, but when he discovers that the F-Series was made primarily for women, he gives it to Marge. Marge takes to the vehicle by becoming a more reckless, aggressive driver. While racing about town, she is busted for an illegal maneuver and must go to traffic school. But the classes turn out to be useless--Marge accidentally crashes the Canyonero into a prison and sets off a crime wave. When her license is revoked, Marge can only drive again when the police beg her to use the Canyonero to round up some stampeding rhinos who've escaped from the zoo. Marge saves the day, but wrecks the car as a result.