Season 4

Season 4 is an upcoming season of the television series of The Deep. Despite a delay due to the COVID-19 pandemic, the ABC confirmed the series for its fourth season on July 26, 2021, and like the previous season, it has 13 half-hour episodes. For the first time, Infinite Studios of Singapore will contribute to producing this season. Season 4 premiered first on CBBC in the United Kingdom on May 30.

Synopsis
''After searching for generations, the Nekton family have finally found the fabled city of Lemuria, unlocking secrets and tantalising mysteries. But the greatest discovery they’ve made is also the most shocking: proof that Ant and Fontaine’s grandparents made it to Lemuria! The Nektons had given up on ever seeing their loved ones again – but now they have hope. Now their most important search begins. While encountering more legends and myths, pirates and leviathans, the Nektons will explore The Deep… in search of their family.''

Plot
The plot follows the Nekton family trying to find Will's parents after discovering their communicator in Lemuria in the season three finale "The Sceptre".