Plot synopsis: Actor Lee Tracy presides as ringmaster over a show that combines the best elements of cinema with the circus, what he calls a Cinema Circus. Tracy introduces a number of professional circus acts, plus a cavalcade of movie stars who have side shows under the open air big tent. There is as much action in the audience as Tracy identifies a number of movie stars watching the proceedings incognito, having their own fun in the stands, and sometimes interacting with the circus acts.