Pilots, humpbacks, bowheads and orcas are the majestic sea mammals introduced to the viewer by scientists willing to risk life and limb as they journey from the Florida Keys to the Arctic in daring missions of whale conservation. The juxtaposition of these graceful creatures and man's commercial efforts to slaughter them is the focus of this compelling documentary, which includes the bonus program National Geographic's Crittercam: Pilot Whales.