Michael Peterson, Steven Hawley | 2019 | 51 min.
2020 Official Selection
For eons, salmon-eating killer whales have hunted Chinook along the Pacific Coast. Since 1976, renowned whale scientist Ken Balcomb has closely observed them. He’s familiar with a deadly pattern: as salmon numbers plummet, these whales starve. His solution: getting rid of four dams on a key tributary of what once was the largest Chinook producing river on earth.