It's quite the big day for ShowTime's Emmy and Golden Globe-winning "Homeland," which is gearing up for an internal reboot after last season's shocking season finale dramatically shook up the groundwork of the hit series. Following in the footsteps of the new Season 4 poster is the political thriller's debut trailer.

READ MORE: Emmys: Claire Danes and Alex Gansa Discuss the Shocking Season 3 Finale to 'Homeland' and Tease Season 4

The clip provides fans with their first look at the new season, which relocates the adventures of CIA officer and new mom Carrie Mathison (Emmy winner Claire Danes, a nominee again this year for her work last season) to a violent Pakistan. With tons of fast-paced explosions and political intrigue, the trailer hopes to reroute fans back to the series after two uneven seasons. Will it work? Potentially, especially with old favorites Mandy Patinkin and Rupert Friend returning and new cast additions such as Corey Stroll filling in the absences from last season. 

The new season of "Homeland" premieres Sunday, October 6 at 9pm.