The episode airs in the United Kingdom on April 17.
Find the description below the cut:
The Doctor has been summoned by an old friend, but in the Cabinet War Rooms far below the streets of blitz-torn London, it’s his oldest enemy he finds waiting for him, as the time-travelling adventures continue. The Daleks are back – but can Winston Churchill be in league with them?
The Doctor is played by Matt Smith and Amy Pond by Karen Gillan.
