They are efficient killers, and they have learned their skills from a master. Using the force of the sea to propel themselves forward, they look, they listen, and they calculate their chance of success. Then, the black and white, five-ton predator surges from the watery depths to seize prey from the rocky beach before sliding back into the water. They are the only pod of orcas in the world to have perfected this exact technique. Now they are taking their hunting strategies to a level never seen - anywhere - before. For years the orcas of Valdez Bay have been intentionally stranding themselves to hunt juvenile sea lions: now we see females in the pod targeting the elephant seals that are three-times larger. Smaller and more agile than the dominant males, the females in the group have begun to follow narrow channels through the rocky coves to attack the elephant seals on their protected beach. We will investigate whether they have raised the predatory bar (an incredible feat in itself) or if they have a hidden motive. Set against the stunning, rugged wildlife haven of Argentina's southern-most coastlines, we will capture a wealth of astonishing behaviors for the first time. Using HD cameras both topside and underwater and rigging remote HD specialty cameras at the beach where predation on both sea lions and elephant seals occurs, we will expose the complex interactions between members of the pod. Now, the orcas being trained to strand themselves during sea lion capture provide other members of the pod with food, and they are seeking larger meals all the time. A fully grown elephant seal can weigh three tons: even a killer whale will not take on a mature bull. But, how far will they go? In the Bay, all bets are off, and only the orcas know their own limits.

Originally released by National Geographic, 2009. Streaming video file encoded with permission for digital streaming by Infobase on April 07, 2015.

Unique Orca Hunting Technique (6:29); --Sea Lion Breeding Colony (6:15); -- Orca Killing School (4:00); -- Successful Hunting (4:02); -- Hunting On the Open Sea (5:27); -- A Learned Strategy (6:19); -- Elephant Seal Breeding Colony (5:08); -- Beach Hunting Class (8:44); -- Learning to Work As a Team (3:45); .