Identical twins Althea and Athena Grey move in with family friend, Mae after their parents are murdered. It doesn't take long to discover that there is something going on with the kids in Beacon Hills. Their world is turned upside down when they find out that not only does the supernatural surround them, but it also lives within them. Working together with Scott's pack, they try to protect the citizens of Beacon Hills, all the while uncovering secrets from the past, discovering who they are, and dealing with the struggles of being a normal teenager. With classes, families, and youthful relationships, they attempt to balance the supernatural world with the real world.