Holmes and Watson come face-to-face with Moriarty when their adversary is brought in as a consultant on a kidnapping case. Meanwhile, Detective Bell continues his struggle on the road to recovery.
Elizabeth is torn when she must decide on whether to lift sanctions against the country responsible for the bombing of an American embassy.
In the explosive season finale, there's a shocking anti-globalist terrorist attack and Elizabeth prepares to leave the state department.
Romance and sibling rivalry complicate the search for the fabled wedding ring of Anne Boleyn. With Tia Carrere and Christien Anholt.