Léo et Diane tournent dans une publicité pour un dentifrice dont les héros sont Jane et Tarzan. Mot aussi aimerait beaucoup connaître la gloire des studios. Il débarque alors sur le plateau de tournage en compagnie d'un éléphant de quinze tonnes et de deux chasseurs anglais à la gâchette facile.
Under the glare of the spotlights, Diane, fifth chorus girl in a toothpaste commercial, assisted by Leo the devoted trainee, begins her career as a star. On the set are Tarzan and Jane, the heroes of the commercial who are praising the merits of fresh breath. Ready to win his first Oscar, Mot bursts into the studio armed with his acting talent and a five ton elephant ridden by two Englishmen who are keen on using exploding bullets on safari. Total destruction of the sets and also the career of Diane, whom Leo will have a hard time winning back. Especially as the scene is broadcast live ...