The world and the universe are controlled by beings with powers that we the uninitiate can only call magic but like all things has a cost. Each new season two beings compete for control of the earth and influence the path we will go down. They decide on a game of chess where each move impacts the real world. Knock a piece over someone dies or just remove it and they go on with their lives. The winner will decide the fate of mankind. Good vs Evil but can you really tell the difference.