When Vincent Keller is approached by the family of a fellow soldier who went missing in Afghanistan, he vows to help them uncover the truth behind her disappearance. Meanwhile, Catherine is working on the case of a young girl so traumatized by the brutal murder of her aunt that she is unable speak. Cat knows how it feels to grow up haunted by a terrifying past, and Vincent will do anything to ensure that justice is served. Together, they will risk everything to prove that even in the darkest place, there is hope.