Forest ranger Jiang Che enters the mountain to report for duty. Relying on his secret ability to understand the inner voices of birds and beasts, he successively takes in a group of fierce beasts including a giant panda mother and daughter, golden eagle mother and son, a large black bear, and a pregnant tigress, transforming from a forest ranger into an "animal dad." He broadcasts his patrols live, rescues endangered species, discovers poachers, and saves a tiger alone in a rainstorm, trading his sincere heart for the trust of ten thousand beasts. The courtyard goes from lonely to lively, with the bear mom pulling weeds, the eagle mom building a nest, and the tiger mom entrusting her orphans, staging a healing legend of harmonious coexistence between humans and fierce beasts in the hundred thousand great mountains.