Season 4
13 episodes · May 30, 2022
Season Videos
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S4E1The Hole Truth
May 30, 202222mAnt and Fontaine realise that 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?
S4E2The Biggest
May 31, 202222mAnt 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.
S4E3Little Problems
Jun 1, 202222mThree 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?
S4E4The Lead
Jun 2, 202222mDoes 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?
S4E5AWOL
Jun 6, 202222mA mysterious dolphin in a sophisticated electronic harness zaps all the Rover's power. Ant and Fontaine manage to remove the harness, but can they rehabilitate this cybernetic dolphin to survive in the wild?
S4E6Deceptive Appearances
Jun 7, 202222mMad Madeline steals the dangerous Sceptre of Queen Dorius.
S4E7Glass Houses
Jun 8, 202222mThe Nektons help locate a legendary Singaporean glass cabinet. However, they discover it is guarded by a terrifying and familiar creature.
S4E8Unidentified Floating Objects
Jun 9, 202222mThe Nektons are busy recovering sunken shipping containers, so when Bethany the fish finds herself in danger, only Jeffrey can save her.
S4E9At the Bottom of the Gyre
Jun 13, 202222mAnt has created a clever machine to clean up a vast oceanic rubbish dump. However, when the machine is been eaten by a huge creature, it's up to the Nektons to save it.
S4E10Walking with Fish
Jun 14, 202222mAnt and Fontaine discover the secret of the Bajau Laut people, a tribe of sea nomads living in the South China Sea. The pair are determined to help them - but how do you find a fish that walks?
S4E11Getting Warmer
Jun 15, 202222mAnt 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?
S4E12The Big Clue
Jun 16, 202222mFontaine is amazed when Smiling Finn tells her that he has detected a signal from her grandparents’ missing submarine. Is this a joke, an elaborate scam, or something even more amazing?
S4E13The Inside Story
Jun 20, 202222mA submarine is trapped in an astonishing location. The Nektons launch an elaborate and dangerous rescue mission to save the people inside. Could it be their missing grandparents?