When Mexican drug cartels and Chinese traffickers join forces to poach the rare totoaba fish in the Sea of Cortez, their deadly methods threaten to destroy virtually all marine life in the region, including the most elusive and endangered whale species on Earth.  The Sundance award-wining documentary Sea of Shadows follows a team of brilliant scientists, high-tech conservationists, investigative journalists and courageous undercover agents as well as the Mexican Navy as they put their lives on the line to save the endangered whales and bring the vicious crime syndicate to justice.