Several years and two incarnations later, the Doctor crosses paths with another traveller again. And she has concerning news for him. In the universe where Kate had settled down, Bad Wolf has returned, together with what is rumoured to be the Doctor's offspring. But will the Doctor be able to face what he made himself responsible for, on a day many years ago, when a young Rose Tyler looked into the Time Vortex to save him? And can she accept that he is, in fact, her Doctor? All rights to Rose and the Doctor belong to BBC Doctor Who. (Second part to 'Travellers' Hearts')