This story takes place many years after Mowgli killed Shere Khan, left the wolf pack and began to live in a man village. For a long time he is neither accepted by humans nor the jungle beasts. One day, a series of bizarre animal attacks happened near the village. After a group of hunters came to him for a clue of the long forgotten Ruined Castle, everything took a turn to the worst and unexpected. They, including Mowgli, have no idea that the Bandar-logs, King Louie and White Hood had actually been held as prisoners in the Cold Lairs for hundreds of years. There are more unspeakable secrets to the Ruined Castle...