Alaska's deadliest predators fight to survive in one of America's last wild frontiers. When winter breaks, carnivores clash on Alaska's waterways and wide-open spaces to make the most of the endless sunshine. The shores along its open ocean create a path for giant hunters like orcas, salmon sharks, and walrus. Inland, wolverines chase prey with ferocious intensity. Bears reap the benefits of brutal ocean kills along the coastline and waterways.