It is summer, both Cass and Em have finished school and are waiting for exam results. Em has a flashback while at a friend's house, which plunges her into a host of memories she would rather forget. She decides to try make sense of her childhood and establish links with lost relatives. In doing so she has to face up to difficulties and unexpected revelations that affect her relationships, even the one with her boyfriend, Jock. Cass supports her as she makes this journey and struggles to cope with her emotions. Meanwhile, Em is still trying to get on with life in the present, which includes dancing, and Cass is moving into a new phase of accepting her scarred appearance.