Clara and kara danvers are sisters from krypton but when their planet is destroyed they are sent to earth to look after there baby cousin the only problem was that their space crafts were knocked off course and when they finally made it to earth their cousin had grown up to be SUPERMAN. Clarke gave them a new home with the danvers family and they will live a happy life for years to come but one day something happened something terrible that could affect everybody in that house even there adoptive sister Alex it could change her future forever.