Blue Planet III

Name: Blue Planet III
Genre: Documentary
Released: 2026-11-01
Cast: David Attenborough

RETURNING1 Season3 Episodes★ —

Blue Planet III is a documentary series on BBC One that premiered in 2026, with 1 season and 3 episodes to date. Its most recent episode aired on Nov 2, 2026, and more episodes are on the way.

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NetworkBBC One

First AiredNov 1, 2026

Last AiredNov 2, 2026

GenreDocumentary

Runtime58 min

LanguageEnglish

CountryUnited Kingdom

ProductionBBC Studios Natural History Unit, BBC America, ZDF

Overview from TMDB

The third series of this nature documentary uses the very latest in underwater filming techniques to reveal brand new and untold stories from magical underwater worlds focusing on five major underwater habitats: the tropical seas, temperate seas, polar seas, high seas and deep seas.

AIRING NOW

Blue Planet III is airing now. The most recent episode aired on Nov 2, 2026, and the next air date has not been listed yet. Track this show to get an alert when a date is confirmed.

Cast

David Attenborough

Self - Presenter

Seasons & Episodes1 season · 6 episodes

0% complete

E1Tropical Seas

Nov 1, 202658m

Warm waters and year-round sunshine create the perfect conditions for the ocean’s richest habitats to flourish, but survival here takes remarkable and surprising tactics.

E2Open Ocean

Nov 1, 202658m

Beyond the horizon lies the vast Open Ocean, a mysterious wilderness teeming with extraordinary life that thrives against all odds.

E3Season Seas

Nov 1, 202658m

Between the tropics and poles lie seas governed by the seasons. From storm-battered winters to the intense heat of summer, it's a world of extremes, but for those that can adapt, opportunity awaits.

E4Polar Waters

TBA

Polar waters help power global ocean currents, bringing epic wildlife spectacles and surprising animal behaviour far beyond the poles.

E5The Deep

TBA

Journey into Earth’s last great frontier, where cutting-edge technology reveals an extraordinary world hidden beneath the ocean’s surface.

E6Future Seas

TBA

Our ocean faces immense challenges, but we now have the tools to help it recover and there are incredible people around the world leading this fight.

About Blue Planet III

Blue Planet III is a documentary series on BBC One. The show first aired on Nov 1, 2026 and currently has 1 season and 3 episodes. Blue Planet III is currently airing; its most recent episode aired on Nov 2, 2026. The cast includes David Attenborough.