The second episode opens with the unexplained murder of a priest in an ally in Paris. Jack is now back in Langley, nursing his wound and an old spinal injury. In a meeting of the top brass, it is suggested that Suleiman is ISIS, but Jack disagrees. Something is different about this strange man from Lebanon.
Jack cracks the code of Sulieman's cell phone. The password came from Suleiman's old prison ID number. Meanwhile, at the Gulf of Aden in Yemen, Suleiman bids farewell to brother Ali, who heads to Paris that is the center of the event that the group is planning.
Back in Al Manajeer, Syria, Sulieman's wife is uneasy about the men her husband brought to their home, one of whom is shamelessly flirting with her young daughter.
Jack has paid a visit to Dr. Cathy Mueller at Memorial Hospital, where Jack has undergone an MRI on his back. Dr. Cathy gives Jack her phone number. As for Greer, he has been out of touch with his estranged wife Jasmine, for whom he converted to Islam. But he is no longer among the faithful, as he tells one of his old buddies.
The episode concludes in the Belleville and St. Denis area of northern Paris. It is there that the terrorist cell is met by a Paris SWAT team. But the ringleader Ali is tipped off and makes a daring escape just as a suicide bomb worn by one of his associates explodes in the apartment building. Jack cannot catch the furtive Ali, who flees the scene.