is an epic adventure that explores the vast world of the Great North. The film follows the walrus, Seela and the polar bear, Nanu, on their journey from birth to adolescence to maturity and parenthood in the frozen Arctic wilderness. Once a perpetual winter wonderland of snow and ice, the walrus and the polar bear are losing their beautiful icebound world as it melts from underneath.
Nanu and Seela might be rivals in the wild, but together they now face a single danger. Both must seek out new ways to live in a world where the rules have changed. The tale begins as Nanu, a fluffy polar bear cub, bursts with her mother and brother from their winter den on Snow Mountain, scampering, tumbling and sliding through the heavy snow with joyful abandon. At the same time, Seela, an endearing walrus pup, emerges into the world, joining her close-knit family herd on the icy islands of the surrounding sea, where they sun, snuggle, scratch, snooze and emit a symphony of blissful grunts and groans.