Nearly three decades ago, filmmaker Hardy Jones became fascinated by wild dolphins. Even though many said it couldn’t be done, he set out to film these sleek sea mammals in the open ocean. Along the way, he became closely involved with his subjects and came to appreciate dolphins as highly intelligent creatures worthy of careful protection.

Eventually, Jones turned his camera into a tool for conservation. He filmed dramatic dolphin hunts, and the documentary footage made headlines and sparked international protests. Jones also discovered the effects of chemical pollution on dolphins and orcas, the largest species of dolphin. He came to realize that threats to these marine mammals were threats to the ocean itself, and to us all.