For three seasons, Showtime's "Homeland" has revolved around the struggles of Claire Danes' CIA agent Carrie Matheson and Damian Lewis' POW-turned-terrorist-turned-CIA-asset Nicholas Brody. But at the end of Season 3, feeling that Brody's storyline had run its course, the show killed the character off.
So what do you do when one of the two leads your show is built on is gone? How do you move on? Can you move on? Could there have been a compelling Mulder without Scully? Or a Bert with no Ernie? Cagney without Lacey?
"Homeland" fans will find out in October, when the show returns with Carrie Matheson promoted to its solo lead. Interestingly, no new secondary lead is being brought in to replace Lewis, which is a smart move. Many other characters will find added prominence as well, including Rupert Friend's Peter Quinn and Nazanin Boniadi's Fara Sherazi. A number of major recurring characters have been added for the fourth season as well, played by actors like Corey Stoll, Laila Robins, Suraj Sharma and more.
What we know about Season 4 is very little, but Showtime has released a full-length trailer that reveals a few new details. Carrie appears to be taking on a dangerous new CIA post in southern Asia, forcing her to leave her newborn behind. The nature of her position isn't explained, but it's hinted that she'll be functioning as an assassin of sorts. The rest of the cast has plenty of meaty drama to chew on as well, but the spotlight will unquestionably be on Carrie.
Watch the trailer below. "Homeland" Season 4 premieres Sunday, October 5, 2014.