Months have passed, Saul (Mandy Patinkin) is now firmly entrenched as head of the CIA, though the CIA itself is less entrenched; a Senate subcommittee is determined to get to the bottom of the bombing even if it means dissolving the agency. Off her meds and struggling with Saul's new relationship with manipulative black ops genius Dar Adul (F. Murray Abraham), Carrie whipsaws between hysteria and grim resolution. Over in the Brody household, Dana (Morgan Saylor) is also coming to terms with a father's betrayal. Even more than last season, every character is forced to turn and turn again -- Saul appears to be throwing Carrie under the bus, Carrie is now arguing Brody's innocence, and Quinn (Peter Friend), who once saw Carrie as a liability, is now her biggest supporter. "You need to really slow things down so they don't become overwhelming," a counselor tells Dana early on, and it seems the writers are taking that advice. Early episodes revisit old territory, claim some new and reconnect "Homeland" with its own fabulous spy-versus-spy roots. Showtime, Sundays, 9 p.m.