With his TARDIS in ruins, the newly-regenerated Doctor with the help of Amy Pond must save the world in less than twenty minutes from galactic policemen known as the Atraxi.

The Doctor takes Amy to the future inside Starship UK, which contains in addition to British explorers, an intimidating race known as the Smilers.

The Doctor and Amy meet Winston Churchill during a trip back to World War II, where they also encounter the Daleks.

The Doctor and Amy emerge from the TARDIS to find the wreck of the Byzantium spaceship. Down below the Weeping Angels are stirring, but the Doctor has someone else to contend with, none other than the mysterious Professor River Song.

The Doctor, Amy, Dr. Song and the remaining soldiers manage to escape from the crashed ship and into the forest. The Angels attempt to create a rift in time and space such as the Doctor had found in Amy's room when they first met. Amy meanwhile is counting down from 10 minutes and the Doctor has determined that an Angel has taken over her mind.

The Doctor suspects something isn't quite right with the daughters of the family that protects the streets of Venice.