Jean-Albert Lièvre's masterpiece is a breathtaking journey into the depths of the oceans, from Mexico to Greenland. Through spectacular underwater shots, he shows the world of whales and the latest scientific discoveries about them. Inspired by Heathcote Williams' novel "Whale Nation", the film emphasizes the importance of these majestic marine mammals for human survival. Unaffected by earthquakes and ice ages, the history of whales offers important lessons for humanity. An impressive insight into the animal world and a plea for its unconditional protection.