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.
| Writing | Marcus Aurelius Pimenta | Writer |
| Directing | Kiko Mistrorigo | Director |
| Visual Effects | Manoela Paixão | Animation |
| Visual Effects | Paula Magrini Urbinati | Animation |
| Production | Adriano Schmid | Supervising Producer |
| Directing | Celia Catunda | Director |
| Visual Effects | Tathy Schorr | Animation |
| Sound | Paulo Tatit | Music |
| Sound | Márcio Nigro | Sound Designer |
| Writing | Marcela Catunda | Writer |