In 1977, Sam Brogna and his friends came upon a terrifying, alien creature on a deserted country road. What they witnessed was so bizarre, so chilling, they swore their silence. But their lives were changed forever. Decades later, the town of Dover has been hit by a massive blizzard. Sam’s son, Nicky, is drawn to search for the infamous cryptid, only to disappear into the bowels of a secret underground lair. The Dover Demon is far deadlier than anyone could have believed. And there are many of them. Can Sam and his reunited friends rescue Nicky and battle a race of creatures so powerful, so sinister, that history itself has been shaped by their secretive presence?