chunk: By the 1980s, both are well known freedivers, swimmers who can remain underwater for great times and at great depths. Enzo is on Sicily now, where he rescues a trapped diver from a shipwreck. He is a world champion freediver with a brash and strong personality, and now wishes to find Mayol and persuade him to return to no limits freediving in order to prove he is still the better of the two, in a friendly sports rivalry. Mayol himself works extensively with scientific research as a human research subject, and with dolphins, and is temporarily participating in research into human physiology in the iced-over lakes of the Peruvian Andes, where his remarkable and dolphin-like bodily responses to cold water immersion are being recorded. Insurance broker Johana Baker (Rosanna Arquette) visits the station for work purposes and is introduced to Jacques. She secretly falls in love with him. When she hears that Jacques will be at the World Diving Championships in Taormina, Sicily, she