Every summer in the seas off Alaska humpback whales, sea lions and killer whales depend on an explosion of plant life, the plankton bloom. It transforms these seas into the richest on Earth. But will these animals survive to enjoy the great feast? Filmed from the surface, underwater and—for the first time—from the air, we reveal how giant the humpback whales can catch a ton of fish every day.

Originally released by BBC Worldwide Learning, 2009. Streaming video file encoded with permission for digital streaming by Infobase on April 20, 2018.

Introduction: The Great Feast (4:32); --Traveling the Ocean for Food (3:55); -- Herring Spawn (6:07); -- Bloom of the Plankton (8:05); -- Life Giving Storms (6:40); -- Final Secret of the Feast (5:22); -- Height of the Great Feast (5:16); -- Greatest Predators of the Feast (6:03); -- End of the Great Feast (1:57); -- Credits: The Great Feast (0:39); .