“Beirut is Back” is filled with some interesting and intriguing story lines on many fronts, although the most compelling focuses on Carrie’s (Claire Danes) meeting with Fatima (Clara Khoury). Brody’s (Damian Lewis) friend and fellow Marine, Mike Faber (Diego Klattenhoff), asks Brody to look into the official report regarding Tom Walker’s (Chris Chalk) death and assassination attempt that resulted in the death of Elizabeth Gaines (Linda Purl) last season; and Cynthia Walden (Talia Balsam) asks Jessica (Morena Baccarin) to help with a fundraiser for a group of veterans. These story lines all have far-reaching effects on the characters, as well as the basic story line.