Attenborough explores the planet's undersea habitats, revealing the greatest age of ocean discovery and emphasizing the ocean's vital importance while exposing its problems and highlighting opportunities for marine life recovery.
迪恩·波特 , 亚历克斯·霍诺德 , Brad Lynch , Jim Hurst , Dean Fidelman , Eric Perlman , Timmy O'neill , Cedar Wright , Dan Duane , Elizabeth Potter , Jennifer Rapp , Jay Epstein
简介：Attenborough explores the planet's undersea habitats, revealing the greatest age of ocean discovery and emphasizing the ocean's vital importance while exposing its problems and highlighting opportunities for marine life recovery.
