College student Chen Yu is tricked by his tutor into working as a forest ranger at Laoling Mountain Reserve. There, he accidentally gains the ability to understand animals.Grateful sable parents settle at the station and bring an Amur leopard cub. The leopard mother leaves her child in Chen Yu’s care after he clears tree gum for her.The reserve soon gathers countless rare wild animals. Leading hundreds of beasts, Chen Yu assists the police in taking down drug-making and poaching gangs, safeguarding the mountain forest.