2 years after Humanity had made peace with the Dragons on Dracon and with the last of humanity having been transported from Earth, the Earth once lush planet has now become a desolate wasteland. Kavin and Emma continue their reign of peace and prosperity with their heir Leon. It is then that dragon god Perfius calls upon the dragon king to fight an age old primordial dragon god who was thought to have died during the extinction of the dinosaurs.

During Earth's Prehistory, Dragons were one of the dominant predators of the world. Having survived extinction however, they were hunted down and slaughtered by the Humans that came into existence. Perfius, the Dragon God fled Earth and found a savage world which he tamed with a new generation of dragons who built and ruled grand kingdoms. Several millions of years later, Dragons remain prejudice of humans despite the fact none exist on their home. This all changes when a human female comes to their world and befriends a dragon prince who wishes to aid her in her mission to save mankind from extinction.