Whilst exploring a reef, Ant hears a strange song. As they leave the reef, another fish is confused for Jeffery, and he gets left behind. Meanwhile, the Nektons find that the song is from an extremely rare whale species. However, Devil Daniels thinks it is a siren and sets out to capture it and inadvertently captures Jeffery as well, who has befriended the whale. After some persuading, Daniels agrees to take the whale to introduce it to the only other known individual of its species.

Welcome to The Deep Official channel by WildBrain!
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The Nekton family are adventurous underwater explorers who live in a state-of-the-art submarine named the Aronnax. The family consists of Antaeus and Fontaine and their parents Will and Kaiko and they seek to unravel the mystery of the oceans depths. The family seek Lemuria, a lost city that they are trying to reclaim. With help from Nereus, their guardian, they seek to pursue the riddle that will take them to Lemuria.

🙋‍♂️ Antaeus 'Ant' Nekton is Nekton's youngest child and the son of Will and Kaiko Nekton. He has a pet fish named Jeffrey. He is adventurous, a believer in all things mythical and paranormal, and is always eager to explore the mysteries of the deep. As the youngest of the Lemurian royal family, he is the "Chosen One" according to Nereus and is able to use various Lemurian devices.

🙋‍♀️ Fontaine Nekton is Ant's older sister. She enjoys winding Ant up in various ways but always looks out for him. Smiling Finn has a crush on her.

👫 Kaiko Nekton is Antaeus and Fontaine's mother. She is shown to have great mechanical engineering skills and often pilots the Aronnax.

👫William 'Will' Nekton is Ant and Fontaine's father. Once an Olympic swimmer, Will is now a passionate oceanographer. Like generations of Nektons before him, Will has devoted his life to uncovering the secrets of the sea.

🐠 Jeffrey is Ant's pet Yellowback Basslet fish and best friend. He was rescued by Ant, who started to follow him. He seems to possess an unusual degree of intelligence and sometimes gets involved in adventures of his own while the Nektons are absent.