The series focused on protagonist Georgie Lane (Michelle Keegan), who had recently been promoted to sergeant, rejoining 2-Section on a tour in Afghanistan, where she is forced to face her own inner demons.

[3] It was set to follow protagonist Georgie Lane, who has been promoted to Sergeant, reluctant to join 2-Section as they return to Afghanistan, and being forced to face her own fears, regrets, and inner demons surrounding her deceased ex-fiance, Elvis Harte.

[2] Salmon teased the new series provided "an opportunity for us to see Georgie in a new stage of her life, as she comes to terms with life without Elvis and reassesses her relationship to the army and the emotional toll it has taken" and was noted "Michelle Keegan will once again star in this new six-part story that is both exciting and moving and contains unexpected twists".

[5] Filming began in April 2019 in South Africa[3] and concluded in July,[6] with the series set to begin airing in March 2020.

[3] Otherwise, the series saw a major overhaul as Ben Aldridge's Captain James, alongside Shalom Brune-Franklin's Maisie and Harki Bhambra's Rab, did not return,[8][9] their spots being taken by Nico Mirallegro, Will Attenborough, Kaine Zajaz, Amy-Leigh Hickman, Josh Bowman, Nabil Elouahabi, Nebras Jamali and Badria Timini were announced to join.