Takes place between the episodes "Accomplices" and "The Stolen Earth". Donna Noble returns home to chat with her family and tell them all the gossip about her travels. And her grandfather is especially overjoyed - he discovered a new star and named it after himself. He takes the Doctor with him as his special guest to the naming ceremony. But the Doctor is suspicious of some other changes he sees in Earth's skies. Especially to that bright star over there. No, not that one - that one, on the left... The population of the world is being transferred to a new path, a new way of thinking. Something is coming to Earth, an ancient force from the Dark Times. Something powerful, evil and all-consuming...