The wrong group?

16 year old Cassie grew up in a church. I mean being a pastor daughter was fun. Going on mission trips to different states, county's and if she's lucky different countries. Cassie never disobeyed her parents. She was the oldest child out of her two other siblings, Titus and trooper. They were twins and they were identical . They are 11.. But falling into the wrong groups for both her and her brothers was difficult. Will Cassie fall into the wrong group and never be seen again? Or will she be fight through being a strong Christian and stick with God?