Steve starts in a natural museum comparing skeletons, notably dental, of predators from British Columbia. In coastal waters, he meets the huge Steller sea-lion with a scarier mouth then bears. On the sea bottom lurks the basilisk-like fish wolf-eel, who crushes even sea-urchins, devoured with spine. Next the giant Pacific octopus, a crab cracking specialist. As finale orcas, the only killer whale species, actually the largest dolphins, who even demonstrate they hunt the giant sea-lion, but it escapes.