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.
| Actor | Role |
|---|---|
 Renato AragãoDidi | Didi |
 Dedé SantanaDedé | Dedé |
 MussumMussum | Mussum |
 Cristiana OliveiraJuliana | Juliana |
 Duda LittleJonaze | Jonaze |
 Andréa FariaMarta | Marta |
 ConradoBeto | Beto |
 NillTico | Tico |
| CCaxa AragãoJuca | Juca |
 Glenda KozlowskiRose | Rose |
| DDominique ScuderaKátia | Kátia |
| JJohn StanleyDr. Stone | Dr. Stone |
 Carlos LofflerDidi (25 anos) | Didi (25 anos) |
| EEduardo MonteiroDedé (25 anos) | Dedé (25 anos) |
 Lui MendesMussum (25 anos) | Mussum (25 anos) |
| BBaiacoNot listed | Not listed |