So Michelle's mom Anna has gone and done it again - married another new husband. And worse, Michelle has to move into their new house with them. Even worse, this time Michelle has to contend with a new emotionally manipulative step-sister called Scarlett.

Before she knows what's happening, Scarlett is invading her life, co-opting her friends and offering unwanted advice about what to do about her still incapacitated ex-boyfriend Tony. So when Scarlett gloms on to Michelles birthday camping trip and starts to move in on the emotionally fragile Sid, Michelle's got to do something. Sid needs Michelle, he's her friend, and he's always had a thing for her anyway. She does the only thing she knows, but how are they going to tell Tony? And who's that arriving back from Scotland and full of hope for Sid? Now THAT is bad timing.

Skins airs Sundays at 10pm/9c, only on BBC America.