Maggie faces one of the most challenging cases of her career when Halima, a young, orphaned Iraqi girl comes to live with her. Barely able to communicate without a shared language, Maggie must battle to reach the vulnerable refugee and help her to start to overcome the traumas she has endured. But there is more horror to come when Maggie starts to suspect that the young girl is being groomed by relatives back in Syria to return and join ISIS...