Showtime will unveil its new-model “Homeland” with back-to-back episodes on Oct. 5.

The fourth season of the CIA thriller amounts to a reinvention of the show now that the central storyline of the past three seasons, the saga of Nicholas Brody, came to an end in the season three finale.

Season four has been shot in South Africa and features Claire Danes’ Carrie Mathison running a CIA station in a Mideast hotspot. She is presumably also a new mother, having been very pregnant with Brody’s child at the end of season three.

Showtime will air the first two episodes of season four from 9-11 p.m. The new drama “The Affair” will move into the 10 p.m. spot on Oct. 12 — a week earlier than originally planned to draft off what Showtime hopes will be strong momentum for week two of “Homeland.”

“In the aftermath of ‘Homeland’s’ stunning finale last season, there is such strong anticipation for the start of season four that we wanted to give ‘Homeland’ fans an extra generous helping of Carrie and company,” said Gary Levine, Showtime’s exec VP of original programming.

“Homeland” hails from Fox 21 and exec producers Alex Gansa, Howard Gordon, Gideon Raff,
Alexander Cary, Chip Johannessen, Meredith Stiehm, Avi Nir, Ran Telem and Lesli Linka Glatter.