Series 7, Episode 1: 'Asylum of the Daleks'
"So much? They hate you so much. Why?""I fought them many, many times.""We have grown stronger in fear of you.""I know. I tried to stop." The Doctor, Amy and Rory are summoned by the Daleks to blow up their asylum from the inside. There they meet Oswin Oswald, a genius who erases all memory of the Doctor from Daleks' hive minds, before the Doctor discovers that she's been fully converted into a Dalek. The trio escape, as Oswin dies, telling the Doctor to remember her.
Series 7, Episode 2: 'Dinosaurs on a Spaceship'
"Doctor, whatever you want, I can get it for you. Whatever object you desire."Did the Silurians beg you to stop? Look, Solomon. The missiles. See them shine? See how valuable they are. And they're all yours." The Doctor assembles a team and heads off to a spaceship. The ship contains a group of dinosaurs however, along with the villainous Solomon, and the Doctor must save the world before the ship is attacked by Earth missiles.
Series 7, Episode 3: 'A Town Called Mercy'
"But they keep coming back, don't you see? Every time I negotiate, I try to understand. Well, not today. No. Today, I honour the victims first. His, the Master's, the Dalek's, all the people who died because of my mercy!" An alien Doctor named Kahler Jex is wanted by a gunslinger for war crimes. The Doctor is faced with the decision of whether they should hand him over or help him.
Series 7, Episode 4: 'The Power of Three'
"Don't despair, Kate. Your dad never did... Kate Stewart, heading up UNIT, changing the way they work. How could you not be? Why did you drop Lethbridge?""I didn't want any favours. Though he guided me, even to the end. Science leads, he always told me. Said he'd learned that from an old friend.""We don't let him down. We don't let this planet down." Earth is invaded by small black cubes. The Doctor spends a year with Amy and Rory, keeping an eye on them, and aiding new UNIT leader Kate Leftbridge-Stewart with the investigation.