Overview: Argument among the polar bears. Yuka was always at the bottom of the hierarchy with his sister, mother and grandmother. But he is growing up and no longer wants to wait his turn. Brown bear Wolke misses her twin sister Tory, who died just before winter. She can no longer find her place in the forest. And what about giant pandas Wu Wen and her son Fan Xing? Wu Wen appears to have a strict parenting style.