Doctor Who Borrowed Time

"(W) Naomi Alderman Andrew Brown never has enough time. If only he'd had just a little more time. Time is the business of Mr. Symington and Mr. Blenkinsop. They'll lend Andrew Brown some time - at a very reasonable rate of interest. If he was in trouble before he borrowed time, things have just got a lot worse. Detecting a problem, the Doctor, Amy and Rory go undercover at the bank. But they have to move fast to stop Symington and Blenkinsop before they cash in their investments. The Harvest is approaching."