After seeking refuge at her father’s house, Grace finds herself on the receiving end of detectives’ probing questions.

Grace Fraser becomes intrigued by a young mother at her son’s school. Later, news of a tragedy rocks the school community.

Walter finally learns Cabe’s long-kept secret regarding the Baghdad mission, and it threatens to tear Team Scorpion apart forever. Also, Paige’s world is rocked when Ralph puts his life in…