Blue Planet II

From warm, tropical waters to frigid seas at the poles, oceans across the planet are explored to better understand the world beneath the waves.

A groundbreaking journey to the deepest parts of the oceans.

The ingenious ways life exists in the crazy, colorful, vibrant undersea cities of tropical reefs.

The big blue is the world's greatest wilderness, far from shore and many kilometers deep. It's a vast marine desert where there is little to eat and nowhere to hide. Yet it's home to some of the biggest and most spectacular creatures on earth. This episode reveals what it takes to survive in this savage and forbidding world.

Animals fight for space and food in a seasonal world of boom and bust.

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

Scientists from around the world reveal what the future holds for our oceans.

A fascinating special revealing the stories behind Blue Planet II's most memorable moments. Discover what went into creating this stunning natural history series, as we show you the lengths the crews went to and the groundbreaking filming technology they used to capture incredible footage.