A small rag-tag circus/carnival breaks down in the desert in southern New Mexico after a dust storm. Various members of the troupe begin to pull out-this latest disaster the last straw. Those now left have been faithful followers of Dusty, the owner, together with his long-suffering wife, Alta, former trapeze artists, with their dream of creating a show greater than The Greatest Show on Earth, a giant celebration at the heart of the city. Those left have nowhere else to go: Donovan, a giant; Curran, a midget: Billy Bigelow, a magician-cum-handyman and electrician. Into this scene of general disarray, Dusty brings Amazing Grace, who dances with snakes, and the Kid, who might be her brother. She is the one, Dusty is convinced, who will change their luck.