Doctor Who: The Fifteenth Doctor

When the Doctor and Ruby arrive on Cavia, they meet a gentle local who is certain that she has been taken for study by creatures from the stars. The Doctor is concerned to find mysterious meteors appearing in the sky, while strange robotic creatures crowd the forests, watching everything and waiting for… what?

On the crystalline planet of Yewa, the Gardens of Kubuntu are a true Eden, said to be the most peaceful destination in the universe. At least, until the Doctor and Ruby arrive. Ancient rivalries between Yewa and its more prosperous sister world of Bia are being stirred by forces unknown, threatening to plunge its people into anarchy. With Ruby swept up in the fire of the Yewan rebellion, the Doctor finds dark secrets buried deep in the planet’s ancient history – and his hopes for a lasting peace hanging by a thread.

April, 1242: the Doctor and Ruby answer a distress call sent from medieval Russia. The signal’s sender? Ranavere, an alien girl forced to take part in a barbaric conflict between the armies of Estonia and Novgorod on the frozen surface of Lake Peipus. Ranavere wants to escape, but her distress call has summoned her warmongering sisters, intent on preserving family tradition whatever the cost.