Jack's moral code is tested when he and Greer use a Turkish criminal to help them track down a high-value target who may be able to lead them to Suleiman. Hanin tries to evade her pursuers and keep her daughters safe. Cathy investigates an outbreak of a virulent form of Ebola that may point to something more ominous.

Jack and Greer fear Suleiman's next attack could be on U.S. soil. They must figure out how to stop him or risk enormous costs.