This book is a scientific thriller that centers on the battle with the multimillion-dollar marine park industry over the controversial and even lethal ramifications of keeping killer whales in captivity. Following the story of marine biologist and animal advocate at the Humane Society of the United States, Naomi Rose, the author tells the story of the two-decade fight against public relations-savvy SeaWorld, which came to a head with the tragic death of trainer Dawn Brancheau in 2010. The author puts that horrific animal-on-human attack in context. Brancheau's death was the most publicized among several brutal attacks that have occurred at SeaWorld and other marine mammal theme parks. This book introduces real people taking part in this debate, from former trainers turned animal rights activists to the men and women that champion SeaWorld and the captivity of whales.