Location: Cwmtaff, Wales Date: 2020 Enemies: Silurians It is the most important day in the history of Earth: the dawn of a new age of harmony… or the start of its final war. The Doctor must face his most difficult challenge yet and he trie... (more)s desperately to ensure Alaya's prediction of a massacre does not come true. Meanwhile, what fate will befall the captured Amy and can Tony and his friends be trusted?

Meera Syal, Stephen Moore