An FBI agent disappears and they declare her dead -in absentia, which means there was no body. But instead she was being held and tortured for all those years. She comes back her husband is remarried and her son doesn't know her and she doesn't know who took her and held her all those years or why. It was really well done. I really hate love triangle things but it was believable and I actually liked season 2 more. I watch it on Amazon Prime.