Allison's cousin Alex comes to stay with her and her parents, after her own parents passing. Alex is enrolled in beacon hills and soon meets Alison's boyfriend Scott and his best friend Stiles. She seems to find herself falling for Stiles in almost an instant. Will Stiles make a move? In a world of the supernatural, Alex is bound to get caught up in it. But not in the way you'd expect, something much much more. Meanwhile the gang come across some pretty intense dangers on an adventure they'll never forget.