When Joy opens a secret doorway to the Time Hotel, she discovers danger, dinosaurs and the Doctor. But a deadly plan is unfolding across the earth, just in time for Christmas.

Traps are sprung and old enemies unite as the Doctor and Belinda finally arrive home to find a very different world. Can the Doctor see the truth before midnight arrives?

Battle rages across the skies as the Unholy Trinity unleash their deadly ambition. The Doctor, Belinda and Ruby have to risk everything in the quest to save one innocent life.