Ramsey Faragallah

Walker's Washington contact is identified by Carrie and Saul, but the target is protected via diplomatic immunity. Meanwhile, political bigwigs approach Brody about running for a disgraced congressman's seat.

Brody's efforts to sever ties with Abu Nazir triggers flashbacks to his time as a captive. Meanwhile, the mosque shooting results in a public-relations nightmare for Carrie.

While Carrie and Saul are left reeling by the news that Walker is alive, the intelligence organizations squabble over how to capture him. The FBI leans toward using the public's help, but Carrie thinks they should use his family to draw him out. Elsewhere, Brody sets out to find a mysterious man who has surprising info about his years as a captive.

The kidnapping of a young boy reminds Cragen, Munch and Benson of an unsolved case from 13 years earlier.

Jemaine reconnects with the girl who dumped both him and Bret; Murray finds investment opportunities in the stars.

Michael and Claudia Joy prepare for Michael's promotion ceremony; Pamela reaches a breaking point in her marriage; Roland struggles with Joan being deployed; Roxy stresses over finances.