Aziraphale, an angel, and Crowley, a demon, join forces to find the Antichrist and stop Armageddon.

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.