Linus Baker is a case worker at the Department in Charge of Magical Youth. He is given a curious and highly classified assignment: travel to Marsyas Island Orphanage, where six dangerous children reside - a gnome, a sprite, a wyvern, an unidentifiable green blob, a were-Pomeranian, and the Antichrist. Linus must set aside his fears and determine wehther or not they're likely to bring about the end of days.