When terrifying events threaten Coal Hill School, The Doctor decides to go undercover. The Skovox Blitzer is ready to destroy all humanity, and worse, Danny Pink and The Doctor are about to meet.
The Doctor takes Rose on her first adventure through time.
When disaster hits the Titanic, The Doctor uncovers a threat to the whole human race. Battling alongside aliens, saboteurs, robot angels and a new friend called Astrid, can he stop the Christmas inferno?