Blue Planet II – Presenter led

New worlds and animal behaviours are uncovered on a journey from the equator to the poles.

Journey into our final frontier - The Deep - home to magical worlds and real-life aliens.

The ingenious ways life exists in the undersea cities of tropical reefs.

Explore this vast ocean desert where sperm whales must dive 1,000 metres just to feed.

From enchanted forests to undersea prairies, the planet's green seas teem with life.

Coasts are the most changeable of the ocean worlds, but they offer great riches.

David Attenborough explores the issues behind the series' most spectacular stories.