Aziraphale and Crowley, of Heaven and Hell respectively, have grown rather fond of the Earth. So it's terrible news that it's about to end. The armies of Good and Evil are amassing. The Four Horsemen are ready to ride. Everything is going according to the Divine Plan...except that someone seems to have misplaced the Antichrist. Can our heroes find him and stop Armageddon before it's too late?

Zog is a keen young dragon who wants to learn to fly, roar, and breathe fire, so he studies at the Dragon School. He is desperate to impress his teacher and win a golden star, but he is prone to accidents and he has to be helped by a kind young girl who patches up his bumps and bruises.