The little beachside town of San Pancras is not known for anything exciting, but when Zach Darlington buys a mysterious ring at the local flea market, his quiet little hometown is turned topsy-turvy by monsters straight from Jewish folklore and a nefarious secret society focused on upholding an apocalyptic prophecy. Zach discovers that the ring grants him strange powers, and he's intrigued; maybe he can use the ring's strengths to halt the slew of anti-Semitic and homophobic bullying he's experiencing at school. But soon the ring brings unexpected visitors, Ashmedai, King of Demons, in the guise of a preteen boy named Ash, and the local chapter of the Knights of the Apocalypse, a secret society intent on completing a creepy prophecy that will bring three monsters to Earth to start the events of the end of times. Now responsible for the ring and its consequences, will Zach and his friends, with the help of Ash, be able to stop the Apocalypse and save the world?