As 2 Section prepares to return to Afghanistan, Georgie must decide whether to join them, kicking up difficult memories for her.

Cast: Michelle Keegan, Nico Mirallegro, Rolan Bell, Will Attenborough, Amy-Leigh Hickman, Sean Sagar, Sean Ward, Badria Timimi, Joan Kempson, Kaine Zajaz, Angela Lonsdale, Linzey Cocker, Sean Gilder, Genna Galloway, Bianca Flanders