Jack (Jean-Marc Barr) grew up on the Greek coast. Although he watched his father die in a diving accident when he was a child, Jack's love for the sea did not diminish. When Jack's friend Enzo (Jean Reno) found him and persuaded him to participate in the diving championship, Jack agreed. He won the championship with outstanding performance in the competition and got the love of Joanna (Rosanna Arquette). The two were in a hot relationship, but Jack realized that he couldn't let go and couldn't leave the sea. An accident happened. His friend Enzo died in a diving accident. Jack put Enzo's body into the sea. Jack's heart was very confused. He felt that he no longer belonged to human society. He just wanted to dive into the deep sea and accompany the sea for a lifetime like a dolphin. Although the news of Joanna's pregnancy came, Jack looked at his lover affectionately and turned to throw himself into the arms of the sea.