Sharkwater follows filmmaker and biologist Rob Stewart, on a mission to prove that sharks are misunderstood as dangerous creatures. His journey takes him to the Galapagos Islands, Costa Rica, and other places around the world. Underwater, he feeds sharks to demonstrate their fundamentally nonviolent nature. With 90 percent of the shark population destroyed by indiscriminate hunting, Stewart joins forces with conservationist Paul Watson to expose the exploitation and corruption that threatens their very existence.