At stake is the entire universe, and the three Doctors must team up to save it. The tenth hunts werewolves-Zygons in Elizabethan England . Eleven explores mysterious paintings at the National Gallery these days. And the third the person they were once, but never talk about fights with the Daleks in the War of Time. Driven by despair, the War Doctor prepares to make a terrible decision on which the fate of the whole world depends... a decision that even the Time Lord cannot make alone. On this day, the various incarnations of the Doctor will stand shoulder to shoulder to save the Earth, the Universe and his own soul.