Equipped with space suits, golf clubs and a flag, the Doctor and Rose are planning to live it up, Apollo mission-style, on the Moon.
But the TARDIS has other plans, landing them instead in a village on the south coast of England; a picture-postcard sort of place where nothing much happens.
Until now.
An archaeological dig has turned up a Roman mosaic, circa AD 70, depicting mythical scenes, grapes and a Dalek.
A few days later a young woman, rushing for work, is knocked over and killed by a.
