"Victory of the Daleks" is the third episode in the fifth series of British science fiction television series Doctor Who. Written by Mark Gatiss and directed by Andrew Gunn, it was first broadcast on BBC One on 17 April 2010.

In the episode, the Doctor (Matt Smith) and his companion Amy Pond (Karen Gillan) arrive in London during the Blitz, where Winston Churchill (Ian McNeice) has employed "Ironsides", a scientific creation from Professor Bracewell (Bill Paterson) to be used as weapons in the war effort. However, the Doctor recognises the Ironsides as his archenemies the Daleks, who plan to destroy Earth by activating a device located inside Bracewell, an android.

Wishing to incorporate the popular Daleks into the series, showrunner Steven Moffat instructed Gatiss to write an episode about Churchill and the Daleks. The episode introduces a new "Paradigm" of Daleks, which were designed by Gatiss to be bigger and more colourful than the previous variant. "Victory of the Daleks" was seen by 8.2 million viewers on BBC One and BBC HD, placing second for the night it aired. Critical reception was mixed; both McNeice and Paterson's performances were praised, but some felt that the episode was too rushed and would have worked better if it was spread over two episodes.

The Doctor and Amy take the TARDIS to the Cabinet War Rooms during The Blitz of the Second World War, one month after Winston Churchill requested the Doctor's help in the war effort. As the Doctor arrived late, Churchill turned to the scientific advances of Professor Edwin Bracewell, including robotic devices called "Ironsides", which are recognised immediately by the Doctor as his archenemies the Daleks. The Doctor tries to understand their purpose in being on Earth at this time, but they continue to act as Bracewell's inventions, ready to serve Britain's war efforts. Angrily, the Doctor attacks the devices, shouting, "I am the Doctor and you are the Daleks!" Unbeknown to the Doctor and the humans, a Dalek ship is in orbit near the moon; upon hearing the Doctor's "testimony", the Dalek aboard uses it to activate a "Progenator Device" and alerts its comrades on Earth. The Daleks reveal their intent and turn hostile, killing several guards and exposing Bracewell as an android before transmatting to their ship. The Doctor follows in the TARDIS, leaving Amy behind for her protection.

...
Wikipedia