On vacation, students at the World School travel to the Panapaná camp, owned by Alicia's grandfather. There they participate in a contest organized by Mr. Campos, which does everything possible for the children to have real fun. However, Gonzales' arrival shakes the place, as he represents a developer who plans to buy the camp ground to turn it into a polluting factory. To achieve their goal, Gonzales and his faithful partner Gonzalito use every possible evil device, including sabotaging the camp and defaming their Campos.