Journey to shark eden (2010)

Far from civilization, a team of scientists, led by Dr. Enric Sala and joined by Explorer-in-Residence Mike Fay, search in a wilderness of waves for ancient secrets and living treasures. In the most comprehensive survey ever attempted, our scientists discover a hidden world found no where else on earth. Full of coral, fish, and, especially, sharks - this is a world where predators outnumber prey. What they find could change our understanding of coral reefs forever. Enric Sala and his team search for the key to save our planet's reefs... in a hidden paradise called Shark Eden.