The Doctor realises this is the result of a spatial distortion caused by a crashed spaceship and discovers that a week after the last disappearances the entire area will be destroyed and replaced with a lake.

He and Amy will then follow one of three young women who were the last to disappear, approximately a hundred years later, and both groups will activate a homing device on finding the ship so they can get a bearing on its position.

Galloway's partner DC Ruby Porter, whose uncle was the only person to disappear in the 1960s, releases the Doctor without authorisation and he realises the ship's pilot is still in the woods.

The Doctor joins the others in the woods and travels back to 1917, where he manages to talk the ship round, helping it achieve sentience and returning Rory and Harry to normal.

Returning to the present, the Doctor reveals he can bring the ship into one time zone, so the disappearances never occurred, causing Ruby's uncle and the others to be restored to their original position with no-one knowing they were gone.