The video clip is a bit on the spoilerish side. The scene being filmed is probably from the finale. From News14.com:
The Showtime series Homeland took over the Mecklenburg County Courthouse Sunday. Damian Lewis, the show’s star, filmed a scene at one of the building’s entrances.
Wednesday, it was reported the show got the green light for a second season. Crew members say they expect to continue filming around the Charlotte-area.
This is Showtime’s highest rated first-year drama, drawing 4.5 million viewers in its debut.
Download the clip here.