Wildlife film about sperm whales, revealing the secret lives led by these often misunderstood ocean giants. Scientists all over the world are now learning about the secret lives of sperm whales, the world's largest hunters that spawned the legendy of Moby Dick. Although Mellville painted them as fearsome beasts of the sea, they are actually shy creatures, and cameraman Rick Rosenthal needed patience and persistence to film them at close quarters. They turn out to be efficient hunters with a close family network involving sophisticated and vocal social lives.

关于抹香鲸的野生动物电影，揭示了这些经常被误解的海洋巨人的秘密生活。