Meet creatures beyond your imagining in two undersea sagas pulsing with sea serpents, multiarmed beasts, magnificent kelp forests and jellyfish named for a Gorgon. In the Emmy Award winning The Blue Planet: Seas of Life and it's jawdropping successor, Blue Planet II, cutting-edge breakthroughs in science and technology open your eyes to deep blue worlds, amazing sea life, and animal behaviors you've never seen before. Filmed on two circumglobal photo safaris by the BBC's Natural History Unit, with legendary narrator Sir David Attenborough.