Joe Dirt is an idiot, played by David Spade. He works as an oil Weller who is in search of his parents who abandoned him when he was a baby at the Grand Canyon.Joe Dirt has a dream to find the parents he lost at the Grand Canyon when he was only eight years old. Joe hits the road alone in search of his folks. His search takes him from one hilarious misadventure to another, he finds his way to LA, where a shock-jock brings him on his radio show to insult him. But as Joe's life story unfolds, and an entire captivated city tunes in to hear the adventures of Joe Dirt.