Episode 1 (S04E01)

As 2 Section prepares to return to Afghanistan, Georgie is happy to focus on her training role in the UK and send trainee medic Mimi in her place – especially as she is privately haunted by thoughts of Elvis’s death. But with Mimi’s confidence dipping after some complex training exercises, Georgie is compelled to return to Afghanistan to support the new recruits. In Kabul, she is pleasantly surprised at how Afghanistan has changed. But on the way to a local hospital in Kabul, she and some of the section are caught up in a suicide attack targeted at Dr Bahil, the hospital administrator and a candidate in upcoming local elections. Georgie learns that the attack was orchestrated by Aatan Omar – Elvis’s killer – who is still at large. Meanwhile, the newest members of 2 Section bed in: Prof, an ex-teacher with a painful past; Throbber, the section’s clown, who has some growing up to do; and Sandy, their new commanding officer, who is determined to show them who’s in charge. Mimi, meanwhile, harbours a secret about her home life. (BBC)