The Doctor and Donna explore Shan Shen Alley ; Donna visits the fortune teller and is forced to recall when she left home with her mum and then had to make the fateful decision at a junction to turn left or right .

Christmas at the pub , and then everyone rushes out to see a Christmas Star travel into London which it then attacks . Donna finds out someone called the Doctor is dead .

Later in the year, Donna is sacked from her job as the Royal Hope is spiritted away. At home she watches a news report with a Doctor Morganstern . Walking the streets, Donna meets the blonde woman again who tells her to keep a raffle ticket. She wins, and their prize is a hotel stay , but then they watch as Buckingham Palace is destroyed , and a mushroom cloud forms over London .

Now homeless they are billeted to Leeds and find themselves on a street with many others . At their new home they see reports of fat coming to life in America . Later, after the Atmos incident, Donna meets the blonde again and they chat in a park . Later, in the back garden she and Wilf see the stars disappear, and she then decides to go with Rose to the UNIT base . There she discovers the truth about her life and agrees to go back in time to put things right.

Donna arrives beside some shops , and then runs to stop herself from turning right.She "dies" as she is hit by a lorry - and her real self tells the Doctor about "Bad Wolf" ...