The Doctor needs to restart the universe in time for Amy and Rory’s wedding. You know, no biggie.
The Doctor tries to stop the Pandorica, a trap containing the most dangerous being in the universe, from opening.
The Doctor has to deal with a crack in time and the Weeping Angels all at once.
The Doctor meets up with River Song again in the future, all on a hunt for a Weeping Angel.
The Doctor and River Song continue to evade killer shadows as they work to solve the riddle of the Library.
Killer shadows stalk through a giant library, chasing the Doctor, Donna, and a mysterious woman who seems to know the Doctor very well.