David Attenborough returns to the world's oceans in this sequel to the acclaimed documentary filming rare and unusual creatures of the deep, as well as documenting the problems our oceans face.

disc 1. One ocean ; The deep ; Coral reefs -- disc 2. Big blue ; Green seas -- disc 3. Coasts ; Our blue planet.

Bonus features: Into the blue : one 10 minute feature at the end of each episode revealing the stories behind Blue planet II's most memorable moments.