Summer, 1946. The Cousteau family – Jacques, his wife Simone and their two children Philippe and Jean-Michel – live in their beautiful house by the Mediterranean. By day they dive, by night they watch the stars. It’s paradise on earth. But Jacques is never content. He lives and breathes adventure and believes absolutely in the virtues of progress. With his invention, the aqualung, his recently acquired vessel the Calypso, and a crew of free-spirited adventurers, he is ready to cross the world’s oceans.