Hafu, who embarks on an adventure to find his missing father, faces a reality in great crisis. The island of animals is on the verge of disappearing due to environmental pollution! Can the protagonist Hafu overcome this crisis and find his father? Through the polar bear Hafu, awareness of environmental pollution is instilled at a child's eye level, And at the same time, it's a musical family adventure of overcoming and resolving crises while growing!