After a harrowing journey toward Toklo's home in the mountains, the four bears finally arrive. Toklo is thrilled to be surrounded by familiar sights and warm memories of his cubhood. Yet Toklo's homecoming has come at a price. Yakone is dangerously ill, having lost part of his paw in a flat-face trap, and Kallik is wracked with guilt that Yakone's decision to join her on this quest might cost him his life. As the struggling polar bears feel the pull to return to the ice and Toklo begins thinking about a life in the mountains, Lusa is left to wonder where she belongs.