慕什卡（Mushka）和 米什卡（Mishka） 是两只北极熊幼崽，他们在北极开始了一系列冒险。独自外出时，米什卡 (Mishka) 与爱恶作剧的海豹奥拉 (Aura) 成为了朋友。慕什卡（Mushka）被天鹅蛋绊倒，不小心打碎了它们，并在鸟村造成了严重破坏。幼崽们的父亲是伟大的北方动物王国的英明领袖，掌管着他们一年一度的夏日祭典。当同伴被猎人伤害时，幼崽们必须承担起父亲的责任，从猎人手中拯救其他动物。Mushka and Mishka are two polar bear cubs who set out on a series of adventures in the North Pole. While out on their own Mishka befriends Aura, A prank-playing seal and Mushka stumbles over swan eggs, breaks them and creates havoc in the bird village. The cub's father is the wise leader of the Great Northern animal kingdom and is in charge of their annual Summer Festival. When Mu is injured by man, the cubs must take on the responsibilities of their father and save the other animals from the hunters.