作为地球上数目最为庞大的体重超过100磅的顶级捕食者，长期以来，鲨鱼被种种传闻塑造成为海中恶霸，甚至有传言说它可以生吞下整个活人。然而人们并没有意识到4亿年以来，正是由于鲨鱼的存在，才使得整个海洋生态系统维持稳定，从而塑造了这个世界以及整个陆地的生命史。可是，这一存在于地球几亿年的古老的物种，如今却遭遇灭顶之灾。由于鱼翅交易所带来的暴利，大批鲨鱼被捕杀，由于对于鲨鱼缺乏科学的认识，捕杀鲨鱼的行为并未受到过多限制，鲨鱼正在以惊人的数目锐减。幸运的是，许多认识到这一点的人们开始行动起来，他们冒着被渔翅业黑手党杀害的危险，战斗在保护鲨鱼的最前线…… 　　本片入选加拿大多伦多国际电影节前十作品榜单，获得包括夏威夷电影节评委会特别奖在内的15项国际大奖。Sharkwater - The Story "An eye-opening film...visually stunning... this movie will change the way you see our oceans." - Bonnie Laufer, Tribute Magazine For filmmaker Rob Stewart, exploring sharks began as an underwater adventure. What it turned into was a beautiful and dangerous life journey into the balance of life on earth. Driven by passion fed from a life-long fascination with sharks, Stewart debunks historical stereotypes and media depictions of sharks as bloodthirsty, man-eating monsters and reveals the reality of sharks as pillars in the evolution of the seas. Filmed in visually stunning, high definition video, Sharkwater takes you into the most shark rich waters of the world, exposing the exploitation and corruption surrounding the world's shark populations in the marine reserves of Cocos Island, Costa Rica and the Galapagos Islands, Ecuador. In an effort to protect sharks, Stewart teams up with renegade conservationist Paul Watson of the Sea Shepherd Conservation Society. Their unbelievable adventure together starts with a battle between the Sea Shepherd and shark poachers in Guatemala, resulting in pirate boat rammings, gunboat chases, mafia espionage, corrupt court systems and attempted murder charges, forcing them to flee for their lives. Through it all, Stewart discovers these magnificent creatures have gone from predator to prey, and how despite surviving the earth's history of mass extinctions, they could easily be wiped out within a few years due to human greed. Stewart's remarkable journey of courage and determination changes from a mission to save the world's sharks, into a fight for his life, and that of humankind.