Enter the mysterious world of one of nature’s most awe-inspiring marine mammals.

Narrated by Ewan McGregor and set in the spectacular waters of Alaska, Hawaii and the remote islands of Tonga, this ocean adventure offers an up-close look at how these whales communicate, sing, feed, play and take care of their young. Join a team of researchers as they unlock the secrets of the humpback and find out why humpbacks are the most acrobatic of all whales, why they sing their haunting songs, and why these intelligent, 55-foot, 50-ton animals migrate up to 10,000 miles round-trip every year.