Long ago, on Christmas Eve, a baby was abandoned in the snow. Today, Ruby Sunday meets the Doctor, goblins, stolen babies and, perhaps, the secret of her birth.

The Doctor and Ruby meet The Beatles but discover that the all-powerful Maestro is changing history. London becomes a battleground with the future of humanity at stake.

The Doctor and Ruby land in 1813, where guests at a duchess's party are being murdered and a mysterious bounty hunter called Rogue is about to change the Doctor's life forever.