It's the final episode of Homeland's fourth season - but how has this season fared out? The inclusion of F. Murray Abraham's certainly brought a lot of gravitas and he's been exceptional in his role as morally-deficient CIA agent Dar Adal. Tonight's episode sees Carrie and Saul return home to the US to investigate the shocking revelation she uncovered in Islamabad. With Saul rescued from the clutches of Haqqani, he seems more determined than ever to not retire. It's all coming to a head, folks. Tune in.