On the distant world of Mendala, a rash of mysterious attacks have left many towns destroyed, and there are rumors of an army of monsters. Fantasma, leader of the global government, and his colleagues are determined to find the cause of these attacks. However, the search for answers points them to an ancient relic, The Book of War, a cursed artifact that can create indestructible creatures loyal to its master.
It’s been over twelve thousand years since the Book of War was last opened. It was believed to be destroyed during the Great War by the Twelve Warriors and Daughter of the Sun at the cost of their lives. Now, it seems the book has resurfaced, and its new master is seeking to forever tip the balance of power.
The stage is being set for another Great War but who can stop the Book of War once and for all?
Meanwhile on Earth, the teen members of Greengale’s Action and Adventure Club are preparing for their yearly trip when they suddenly stumble upon a secret their parents have been keeping for years. Now their world is being turned upside down as they struggle to understand the legacy that ties their fate to Mendala and the Book of War. Is their destiny set in stone, or will they forge a different path?
No matter what, their choices will bring forth a new era for Mendala.