Doctor Who: The Awakening (TV)

An alien war machine, the Malus, is affecting the inhabitants of the English country village of Little Hodcombe in 1984 so that a re-enactment of a Civil War battle turns into the real thing. The Malus's aim is to gather sufficient psychic energy to activate itself fully. The TARDIS travellers arrive to meet Tegan's grandfather - one of the villagers - but become involved in the machinations of Sir George Hutchinson, who is in thrall to the Malus.