"Polar bear cub Kallik and her brother, Taqqiq, live in a cozy den nestled into the side of a snowy hill. Their mother, Nisa, tells them endless stories of the outside world and Kallik and Taqqiq can't wait to explore everything. Nisa says they're too little to leave the den, but that won't stop them from sneaking out and having all sorts of thrilling adventures on their own.
Kallik and Taqqiq are born in the snow den. When they go out side they meet a walrus named Muddy; Nisa tries to kill him but he escapes.