Os Trapalhões e a Árvore da Juventude (1991)

Sinopsis

Didi, Dedé, Mussum (Mussum) and Zacarias are forest rangers that they work in the Amazon rain forest where they fight the action of smugglers with the aid of Juliana, a beautiful engineer. There are many funny scenes where they find the mythical source of the fountain of youth which they drink, becoming again children.