The Blue Planet

The Blue Planet (2001)

2001 • 1 season • Documentary • TV-G

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On August 9, 2026

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25.4 Attention Score

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Episode 5 — Seasonal Seas

Season 1 • The Blue Planet

Released: 2001-10-10 • Documentary

77%

User score

As the days grow longer, billions of microscopic plankton bloom under the blazing sun. Here in the temperate seas, three-ton basking sharks graze among forests of giant kelp - the fastest growing plant in the world. The forests harbor thousands of other animals, including sea otters, brilliantly colored anemones, squid, and exquisite leafy dragons. But as the year wears on, storms rage in the icy sea... a desperate challenge for the animals that remain.

Where to Stream Episode 5

Season 1 · Episode 5 · Streaming in USA

JustWatch

Paramount Plus Premium

Episodes

Episode 1
Introduction
2001-09-12

Episode 2
The Deep
2001-09-19

Episode 3
Open Ocean
2001-09-26

Episode 4
Frozen Seas
2001-10-03

Episode 5
Seasonal Seas
2001-10-10

Episode 6
Coral Seas
2001-10-17

Episode 7
Tidal Seas
2001-10-24

Episode 8
Coasts
2001-10-31

Information

Episode air date	10.10.2001
Episode runtime	50 min
Episode rating	7.67
Genres	Documentary
TMDB series rating	8.4
IMDb series rating	9.0
Series status	Ended
Age rating	0+
Country	GB

Trailer

Cast

David Attenborough

David Attenborough
Self - Narrator (voice)

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