Little Miss Sunshine tells the story of Richard (Greg Kinnear) and Sheryl Hoover (Toni Collette) who take a cross-country trip in order to enter their daughter, Olive, into a beauty pageant. Tagging along on the trip is suicidal Uncle Frank (Steve Carell), foul mouthed Grandpa Edwin (Alan Arkin) and Sheryl's mute son Dwayne.