Fishtronaut, Marina and Zeek travel to the big city in search of Grandpa, only to find that everyone else has mysteriously vanished too.
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.
Tarsilinha sets off on a journey to save her mother’s memory. The only way to do this is to find her mom's stolen keepsakes and overcome her own fears.
