Terra is dying, when a strange man in a blue box comes to comfort her. One moment she has no idea who he is, and the next she remembers - she's known the Doctor her whole life. And he's going to make sure she's never alone.
Being told that you have to tutor your bully never really sounds good. When Caitlyn is told she has to tutor the person who has bullied her for years, how will they both react? Is he going to open up to her, or carry on pushing her out? Will she forgive him for the constant pain he's put her in through the years...