Episodes
Episode: 4x01 | Airdate: May 30, 2022
Ant and Fontaine realise their grandparents found Lemuria before them - but where are they now? The Nektons follow the trail they left but run into giant, predatory Sand Strikers! Was this the fate of their grandparents?
Episode: 4x02 | Airdate: May 31, 2022
Ant searches a deep chasm for clues to his grandparents' fate, but is stunned to find Mad Madeline there! She has been looking for the biggest sunken treasure ever, but all she has managed to find is the biggest monster!
Episode: 4x03 | Airdate: Jun 1, 2022
Three baby Monumential turtles hatch, and they are the size of city blocks! The playful babies accidentally sink a fishing trawler! Can the Nektons wrangle these creatures before they sink even more ships?
Episode: 4x04 | Airdate: Jun 2, 2022
Does Dolos really have a lead on finding Ant's grandparents? Or is he leading the Nektons into a dangerous chasm between moving tectonic plates for nefarious purposes?
Episode: 4x05 | Airdate: Jun 6, 2022
A mysterious dolphin in a strange electronic harness zaps all the power from the Rover!
Episode: 4x06 | Airdate: Jun 7, 2022
Mad Madeline steals the dangerous Sceptre of Queen Dorius!
Episode: 4x07 | Airdate: Jun 8, 2022
The Nektons help locate a legendary glass cabinet guarded by a terrifying creature!
Episode: 4x08 | Airdate: Jun 9, 2022
Jeffrey must dive to the rescue to save Devil Daniels and his pet fish-Bethany.
Episode: 4x09 | Airdate: Jun 13, 2022
A huge creature eats a machine Ant created to clean a vast oceanic rubbish dump.
Episode: 4x10 | Airdate: Jun 14, 2022
The Bajau Laut people are hiding a secret, Ant and Fontaine are determined to help them.
Episode: 4x11 | Airdate: Jun 15, 2022
Ant and Fontaine rescue a polar bear from the middle of the ocean. However, when they bring her onboard, they realize she is close to giving birth! Can the Nektons move her to a safer place in time?
Episode: 4x12 | Airdate: Jun 16, 2022
Fontaine's amazed when a signal is detected from her Grandparents' missing submarine.
Episode: 4x13 | Airdate: Jun 20, 2022
A submarine is trapped! The Nektons launch an elaborate and dangerous rescue mission.