Doctor Who

Season 0, Episode 52

Episode Title: Night and the Doctor: Good Night

Air Date: 2011-11-22

Overview:

Amy finally gets to ask the Doctor the question that has been plaguing her since DW: Space: how can she remember two distinct histories of her life since the universe was rebooted in DW: The Big Bang? The Doctor in part answers her question by giving her a chance to do a good deed for herself when she was a child.