A genius grad student organizes an all-night treasure hunt in which five rival teams composed of colorful oddballs furiously match wits with one another while trying to locate and decipher various cryptic clues planted ingeniously around Los Angeles.

It's been five years since Terry's friend Glen discovered The Gate to hell in his backyard. Glen has now moved away and Terry begins practicing rituals in Glen's old house and eventually bringing back demons through The Gate and leading to demoniac possession and near world domination.