A provocative journey into the ocean realm, into the depths of that world that tumbles towards oblivion. From the decomposing coral reefs to the marine life killed by the enormous amount of rubbish and fisheries by-catch, the oceans stand at the forefront of humanity's assault on the Earth. Through the eyes of experts and activists who dedicate their lives to research and concrete actions aimed at preserving the marine ecosystem, we explore this battlefield, from Indonesia to Hawaii, immersing ourselves in breathtaking images of marvelous and painful beauty. A courageous denunciation that calls urgently and passionately against the idea that our seas have unlimited resources and to try to save them, before it's too late.