Sixty-five photos of national landmarks suddenly surface, all featuring the Ar Rissalah symbol. Meanwhile, a college student claiming to be an Ar Rissalah operative breaks into the White House. The 7th floor team works to figure out the identities of the picture takers as the hunt for Al Moosari continues. Charlie, now in Yemen, desperately tries to make contact with her asset while evading the Yemeni secret police. Nick's masked captor lets him go only to lead him to his next mission. Back at Langley, Lucas takes the lead on the interrogation of a potential, and very controversial, Ar Rissalah member. At the same time, President Payton must make a hard choice between getting a much-needed win or holding out for her long-term goal of killing Sheikh Hakam.

Charlie and the PDB team race to prove that sorority girl Stacy Dover is, in fact, an active member of Ar Rissalah's American terrorist cell. Amidst the high stakes investigation, Charlie is forced to confront the fact that one of her closest allies may have betrayed her. Meanwhile, Operation Bellerophon is in full swing as Nick Vera gets one step closer to contact with Omar Fattah. But Charlie's efforts to bring down Ar Rissalah may not be able to prevent an attack on the homeland.