The incredible underwater footage being released just keeps on coming, this time courtesy of the Smithsonian who used a new underwater camer setup. Jump to 1.30 in the video if you want to skip straight to the good stuff.
"There's a mysterious predator lurking in the depths of Australia's wild Southern Ocean, a beast that savagely devoured a great white shark in front of cinematographer David Riggs 11 years ago. Riggs's obsession to find the killer leads him to an aquatic battle zone that's remained hidden until now. Here, killer whales, colossal squid and great white sharks face off in an underwater coliseum where only the fiercest creatures of the marine world survive."