http://en.wikipedia.org/wiki/Good_Omens"It is the coming of the End Times; the Apocalypse is near, and Final Judgement will soon be cast on the human race. This comes as a bit of bad news to the angel Aziraphale and the demon Anthony Crowley (who was the serpent in the Garden of Eden), the respective representatives of God and Satan on Earth, as they've actually got quite used to living their cosy, comfy lives and, in a perverse way, actually like humanity. As such, since they're both good friends (despite supposedly being polar opposites, representing Good and Evil as they do), they decide to work together and keep an eye on the Antichrist, destined to be the son of a prominent American diplomat stationed in Britain, and thus ensure he grows up in a way that means he can never decide simply between Good and Evil, thus bringing about the end.
Unfortunately, the child everyone thinks is the Antichrist is, in fact, a perfectly normal eleven year old boy. Owing to a bit of a switch-up at birth, the real Antichrist is in fact Adam Young, a charismatic and slightly otherworldly eleven-year-old who, despite being the harbinger of the Apocalypse, has lived a perfectly normal life as the son of typically English parents and, as a result, has no idea of his true powers. As Adam blissfully and naively uses his powers, the race is on to find him - the Four Horsemen of the Apocalypse (well, bikers, but who's counting?) are riding, and the incredibly accurate (although not particularly useful) prophecies of Agnes Nutter, sixteenth century prophetess, are rapidly coming true..."