Derek Thompson is 'The Tooth Fairy,' a hard-charging minor league hockey player whose nickname comes from his habit of separating opposing players from their bicuspids. When Derek discourages a youngster's hopes, he's sentenced to one week's hard labor as a real tooth fairy, complete with the requisite tutu, wings and magic wand. At first, Derek "can't handle the tooth" - bumbling and stumbling as he tries to furtively wing his way through strangers' homes...doing what tooth fairies do. But as Derek slowly adapts to his new position, he begins to rediscover his own forgotten dreams

The major sub-plot circles around the youngest Griffin, Stewie, who has a near-death experience at a pool when a lifeguard chair falls on him, but he survives. After having a vision of being in Hell, he decides to change his ways, but this doesn't last long. While watching television, he and Brian spot a man that looks like Stewie. Brian is convinced that he is Stewie's real father, until Stewie learns that the man is actually himself as an adult, taking a vacation from his own time period. Baby Stewie visits thirty years later to discover that his adult self, going by the name Stu, is a single blue-collar middle-aged virgin working at a Circuit City-type store. Meanwhile, Peter and Lois are trying to teach their two older kids, Meg and Chris, to date. In the future, Chris, who hasn't changed much, is working as a cop and is married to a foul-mouthed hustler named Vanessa. Meg is now called Ron, since she had a sex-change after college.

Dark forces older than time itself are on the attack, hell-bent on stopping the dawn of a wondrous new green age. Don't you hate when that happens? Even more shocking: Bender's in love with a married fembot, and Leela's on the run from the law - Zapp Brannigan's law! Fry is the last hope of the universe, recruited for an ultra-top-secret mission. Could this be the end of the Planet Express crew forever? Say it ain't so, meatbag!

In this continuation to the adventure of the demon superhero, an evil elf breaks an ancient pact between humans and creatures, as he declares war against humanity. He is on a mission to release The Golden Army, a deadly group of fighting machines that can destroy the human race. As Hell on Earth is ready to erupt, Hellboy and his crew set out to defeat the evil prince before The Golden Army can destroy humanity's existence.