11. Our Man in Damascus

Complete story — includes the ending

Carrie and Saul convince the doctors to revive Quinn to find out what he knows about the impending terrorist attack, but he goes into respiratory arrest and is placed back in a coma. Saul attempts to get information from Faisal; Laura goes on air and threatens to leak the remaining CIA documents unless Faisal is released, but Faisal commits suicide when left alone. Allison receives her final assignment from the SVR: to ensure the chemical attack succeeds. She tracks down the professor who designed the jihadists' sarin chamber and, after he tells her the time and location of the attack, kills both him and her CIA escort before shooting herself. She then tells the BND the professor said the attack will occur at Berlin Brandenburg Airport, but Carrie finds clues in Qasim's apartment suggesting the target is actually the Hauptbahnhof train station. She spots Qasim at the station and pursues him alone, texting Saul that Allison misled them; Saul receives the text and finds that Allison has escaped from her hospital room.