Serena spends her day hunting and playing in the cool waters of the Pacific Ocean. All that ends when she is separated from her nursery by a violent storm. Joining a migration group Serena hopes to soon return to her home waters. However, a dangerous encounter with fishing nets called Tanglers send Serena and her three friends swimming desperately out to sea. With no adults to help them, the four young dolphins set out on a great journey to understand the nature of humanity and develop an Epic song so no dolphins will fall victim to the Tanglers again. Through many dangers and adventures Serena leads her friends across the vast open blue of the Pacific, fighting sharks, other dolphins, and starvation. Traveling around Australia, north towards Japan, and east to Hawaii, Serena encounters many different types of humans, good and bad. Escaping death many times, the dolphins' friendship and loyalty to each other are put to the test. As the dolphins come closer to home Serena believes the dangers are behind them. But she does not realize that her greatest peril is yet before her. Dive beneath the waves and join the "Dolphin Journey" to live the adventure through a dolphin's eyes.