Steve and the crew are in Alaska looking for more deadly animals and, for the first time on Deadly, Steve will also be coming face-to-face with one of the planet's deadliest forces of nature. Venturing deep into the abyss, Steve abseils into the heart of a glacier, experiencing a cold, harsh and inhospitable world that pushes Steve to his limits in what turns out to be one of his toughest deadly challenges yet. Steve also goes in search of grizzly bears on the hunt for salmon and heads out to sea in search of a true ocean giant. Steve gets the shock of his life when a humpback whale catches him by surprise, giving him one of the closest and most thrilling whale encounters he's ever had.