Full of raunchy, tasteless, hilarious gags, JOE DIRT follows its eponymous protagonist (David Spade) on the search for his long-lost parents. Working as the janitor at a radio station, he enlists the help of one of the deejays (Dennis Miller) to tell his story on the air: when he was eight years old on a trip to the Grand Canyon, he behaved obnoxiously causing his parents to abandon him.