Harvey's efforts to free an innocent man hit a wall when he goes against the new district attorney, who seems more focused on the integrity of the system than justice.
Dutch, D'avin and Alvis follow Khlyen's trail to an old research facility on Arkyn, while Johnny and Pawter prepare for war.
President Kirkman negotiates with a foreign government to release an American held overseas, as Ethan West continues his investigation and maintains the pressure on Kirkman's administration.
President Kirkman travels to Camp David to broker a peace treaty with the leaders of East and West Hanchu. Seth and Emily take a hard look at their relationship and decide how, and if, they will move forward as a couple.
While investigating a string of Alpha-related crimes, the team realise that the Alpha they are searching for is one of their own. Nina's past catches up with her. John opens up to Rachel.
