Is Monsters of the Deep: 20,000 Leagues Under the Sea coming back?

Monsters of the Deep: 20,000 Leagues Under the Sea is currently on a break between its seasons. The show last aired on December 29, 2024, and there has been no official announcement regarding its return. As of today, May 10, 2026, the series remains in this hiatus period, with no confirmed date for new episodes.

This documentary series, which premiered on December 28, 2024, on channel 5, explores the mysterious creatures inhabiting the deep sea. It uses advanced CGI to reveal the behaviors and appearances of various deep-sea killers, providing viewers with a glimpse into an environment that remains largely unexplored. The show was a two-part program that aimed to educate and fascinate audiences about the ocean's hidden predators.

The cast includes Jennifer Hoyal Cuthill and Steve Backshall. The show was part of the nature genre and was produced as a short, two-episode season.