The power of three

Dakota grew up a normal girl. Besides the fact that she couldn't remember anything before she was 11. Until shes 21. Then her mother tells her a dark secret about her past before she's killed by an animal she couldn't see. So she's sent off to find a man she doesn't know by the name of Bobby. But little does she know that she's something he hunts. When she finds out about her new 'powers' she also finds out she's a triplet and her and her sisters are in very great danger. So Bobby has three boys by the name of Sam, Dean and Castiel help her track down her family while trying to keep her alive and save her from the darkness consuming them.