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 its 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.