In this two-hour program, Jean-Michel Cousteau and his team of explorers travel to both the Northern and Southern hemispheres as they seek out killer whales in the Atlantic and Pacific oceans. They discover that people and orcas share surprising similarities, even similar needs, and they relate their findings to the captivity and release of Keiko, from Free Willy fame, who captured the world̢ĺŰĺŞs imagination and whose survival depended on pioneering efforts to reintroduce Keiko into the wild. The team also learns how some of the threats to killer whales now intersect with human lives. During the expedition, intriguing detours arise, leading to critical examinations of our environment, of the food on our dinner tables, even of our own health.