Whales and I

The production crew has visited 20 regions in 30 countries to film the mysterious creature, the whale; the first to be introduced is the sperm whale, which has become widely known thanks to Herman Melville's famous novel, "Moby Dick."

The humpback whales in Tonga turn out to be adorable creatures, fighting for love and their babies; they also sing beautifully to communicate and express themselves.

A sei whale, unseen in over two decades, washes ashore on a remote island in the West Sea of Korea; in a first for the country, an autopsy is conducted, leaving everyone in awe.