E1 - The Hole Truth

Aired: May 30, 2022

Ant 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?

E2 - The Biggest

Aired: 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.

E3 - Little Problems

Aired: June 01, 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?

E4 - The Lead

Aired: June 02, 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?

E5 - AWOL

Aired: June 06, 2022

A 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?

E6 - Deceptive Appearances

Aired: June 07, 2022

Mad Madeline steals the dangerous Sceptre of Queen Dorius.

E7 - Glass Houses

Aired: June 08, 2022

The Nektons help locate a legendary Singaporean glass cabinet. However, they discover it is guarded by a terrifying and familiar creature.

E8 - Unidentified Floating Objects

Aired: June 09, 2022

The Nektons are busy recovering sunken shipping containers, so when Bethany the fish finds herself in danger, only Jeffrey can save her.

E9 - At the Bottom of the Gyre

Aired: June 13, 2022

Ant 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.

E10 - Walking with Fish

Aired: June 14, 2022

Ant 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?

E11 - Getting Warmer

Aired: June 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?

E12 - The Big Clue

Aired: June 16, 2022

Fontaine 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?

E13 - The Inside Story

Aired: June 20, 2022

A 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?