Good Omens

Two celestial beings, the angel Aziraphale and the demon Crowley, have gone native and worry when their superiors tell them to prepare the Antichrist for Armageddon. They resolve to secretly join forces to make sure the Antichrist is neither good nor evil... unaware that there was an unwitting switch made and the Antichrist isn't who they think.

Anathema Device and Newton Pulsifer enter the picture as the Final Days draw nigh. Aziraphale and Crowley continue their quest for the correct Antichrist in the hopes of averting Armageddon.

First a walk through history looking at Aziraphale and Crowley's friendship down through the age. In the present, Anathema unwittingly befriends the Antichrist, and the two celestial friends put their agent to work finding the boy, unaware that it's the same agent.

Armageddon draws nigh, Hastur, discovers the Antichrist isn't who he thought, Crowley dances on the head of an electron, Aziraphale tries to contact God but gets his equivalent of an answering service, and Anathema and Newton fulfill a prophecy.

Adam and Them, Crowley, Aziraphale, Shadwell, Tracy, Newton, Anathema, and the Four Horsemen all converge on Tadfield to play their parts in Armageddon.

Armageddon arrives, and Adam must choose between fathers with a little help from Aziraphale and Crowley. Anathema chooses whether she wants to be a descendant, Shadwell wonders how many nipples Tracy has, and Dog breaks through a hedge.