Doctor: Matt Smith (Eleventh Doctor)
Companion: Karen Gillan (Amy Pond)
Alex Kingston – River Song
Iain Glen – Octavian
David Atkins – Bob/voice of "Angel Bob"
Darren Morfitt – Marco
Mark Monero – Pedro
George Russo – Phillip
Directed by Adam Smith
Written by Steven Moffat
Script editor Lindsey Alford
Produced by Tracie Simpson
Executive producer(s) Steven Moffat
Incidental music composer Murray Gold
Production code 1.5
Series Series 5
Length 2nd of 2-part story, 45 minutes
Originally broadcast 1 May 2010
The Doctor, Amy, River, and Father Octavian and his surviving clerics escape the approaching Weeping Angels when the Doctor destroys the gravity globe illuminating the cave they are in, allowing them to jump up into the gravity well of the crashed starship Byzantium. They scramble inside as the Angels start to follow, and the Doctor directs the group to the ship's oxygen factory, a forest contained within the ship. As they pass the primary control room, the Doctor notices a familiar crack in its wall, leaking time energy that the Angels are being drawn to.
Amy starts becoming more afflicted by the image of the Angel in her eye, and the Doctor instructs her to keep her eyes closed, preventing her from seeing it. Octavian has the clerics guard Amy while he, the Doctor, and River make for a secondary control room on the other side of the oxygen factory. During this, the Doctor learns that River is Octavian's prisoner, promised a full pardon if she helped capture the Angel. Octavian is killed by an Angel but this allows the Doctor and River to enter and secure the control room. They analyze the crack the Doctor saw and confirm that the leaking energy came from an explosion in time, and are able to narrow the date of the explosion's epicenter.
Meanwhile, Amy and the clerics find the Angels moving away from the primary control room. One cleric goes to investigate, and finds the crack has grown wider, but then is soon consumed by it. Amy remembers this cleric, but none of the others do, as he had been erased from time. The crack continues to grow, and soon the other clerics are similarly consumed. The Doctor directs Amy to keep her eyes closed and work her way to the secondary control room, hoping that the Angels will not recognise that her eyes are shut. Amy falters and trips, but as the Angels move in, River is able to teleport her to the secondary control room, rescuing her.
The Doctor knows they must close the crack, and figures that a "complicated space-time event", such as a Time Lord like himself or the whole of the Angels, must enter the crack to close it. The Angels' energy drain of the Byzantium engines cause the artificial gravity to fail, and the Angels in the forest all fall into the crack. The crack closes, and because the Angel that infected Amy has been erased from time, she is no longer afflicted by it.
They return outside the caves, where additional clerics take River back into custody. She tells the Doctor that they will meet again when the "Pandorica" opens, which the Doctor dismisses as an ancient Gallifreyan fairy tale. Amy asks the Doctor to take her back to Earth on the day he took her, and she shows him that she is to be wed the next day. The Doctor is shocked when he finds that that date, 26 June 2010, is the same time as the time explosion that created the cracks.