The Mystery Men aspire to being the coolest superheroes in town, but are let down by their less than impressive powers: Captain Amazing (Greg Kinnear) has an ego the size of a plant; Mr Furious (Ben Stiller) just gets angry at everything; the Blue Raja (Hank Azaria) throws forks; the Shoveler (William H Macy) has a spade; the Spleen (Paul Reubens) emits gas; the Bowler (Janeane Garafalo) has a dangerous bowling ball; Invisible Boy disappears, and the Sphinx spouts nonsensical enigmas. When Captain Amazing is kidnapped by the evil Doc Heller (Tom Waits), it is up to the bumbling heroes to save the day.