Rob Stewart tries to demystify the shark and reform it from visceral villain to the cornerstone of the ecosystem. It's a losing fight but he finds comradery with eco crusader Paul Watson. This is not a pretty British nature documentary. Sure, it has some of the pretty underwater shots but its most important part is the over-fishing and the rampant shark finning that is destroying the shark population. It is a siren call for action. I wish it has more with the locals and their fight for the environment. It can get a little too personal but that's part of the point. I would replace his diving to end the movie with more of the demonstration. The section with Paul Watson is thrilling and insightful. Overall, this is a devastating portrait of the environment.