Two men answer the call of the ocean in this romantic fantasy-adventure. Jacques and Enzo are a pair of friends who have been close since childhood, and who share a passion for the dangerous sport of free diving. Professional diver Jacques opted to follow in the footsteps of his father, who died at sea when Jacques was a boy; to the bewilderment of scientists, Jacques harbors a remarkable ability to adjust his heart rate and breathing pattern in the water, so that his vital signs more closely resemble that of dolphins than men. As Enzo persuades a reluctant Jacques to compete against him in a free diving contest -- determining who can dive deeper and longer without scuba gear -- Jacques meets Johana, a beautiful insurance investigator from America, and he finds that he must choose between his love for her and his love of the sea.
The team of people who saved Winter's life reassemble in the wake of her surrogate mother's passing in order to find her a companion so she can remain at the Clearwater Marine Hospital.
Private detective and former football player Harry Moseby gets hired on to what seems a standard missing person case, as a former Hollywood actress whose only major roles came thanks to being married to a studio mogul wants Moseby to find and return her daughter. Harry travels to Florida to find her, but he begins to see a connection between the runaway girl, the world of Hollywood stuntmen, and a suspicious mechanic when an unsolved murder comes to light.
Alyssa is a troubled 14-year old, suspended from school a year after her mother has drowned. Her grandmother Lucy, at wit's end, decides to take Alyssa to her father, James, whom Alyssa thought was dead for years. He studies dolphin communication at Smith's Point, on the Grand Bahama Island. James has not known of Alyssa's existence and is clueless about parenthood. The women arrive at the same time that James may lose his research operation to a tourist attraction. Father, daughter, dolphins, and town are on a collision course. Alyssa and James get encouragement from James's girlfriend and her father. It's the dolphins who can teach, and Alyssa who discovers how to listen.