While taking a walk, Chico Bento, a boor living in the backwoods of Brazil, tells his friend Zé Lelé and girlfriend Rosinha some fantastic stories happened to him: he'd been turned into a frog, been attacked by ants and by an animal resembling a jaguar, and some other doubtful cases.
The series tells the story of Fishtronaut, a fish in a spacesuit, similar to reverse scuba gear, which allows him to fly and breathe out of water. He is a secret agent of Secret Environmental Agency who, along with his friends Marina and Zeek, unravel the mysteries occurring in the Smiling Trees Park. They solve the mysteries with the help of a P.O.P. (Primary Objective Pod), a magical multicolored ball containing clues vital to the mission.
