Showtime have released a trailer for the forthcoming fourth season of Homeland.

With Damian Lewis’ Ni8cholas Brody no longer around, Claire Danes' Carrie Matheson looks ahead to Pakistan and new dangers in the show's latest teaser.

Season 4 will mark the show's first season without Brody, who served as both villain and Matheson's love interest throughout the first three seasons.

The new season offers the show a chance to reboot itself and if the trailer is any indication, it looks like the action's being ramped up.

Season 4 of Homeland premieres on Showtime in October and will follow on RTÉ Two.