Georgie and 2 Section are sent to Nepal following a devastating earthquake, where she quickly discovers that disaster brings out the worst as well as the best in people. In addition to her duties as a medic, Georgie is tasked with mentoring Maisie, a reckless young recruit, and also meets Milan, an attractive Nepalese engineer, with whom she forms a bond while working together to rebuild the area.

A frantic search ensues in the wake of the aftershock when 2-section realise Georgie is missing, while a young local girl previously befriended by Georgie, and a small group of children, are abducted by Da Chand, a fake NGO worker. Military intelligence discovers that he's part of a terrorist network and there's a chance he will lead them to the more important target of Aatan Omar, leaving 2-section to track him and to assist a Special Forces Unit led by a familiar and unwelcome face - Elvis.

An exhausted 2 Section retreat to Kabul only to be ordered to support Elvis in a final mission to capture Omar.

Georgie throws herself into her work training Nigérian forces in the fight against Boko Haram, only to find herself pitched headlong into danger.

Georgie and the others wait to be rescued so a counter-offensive can be launched.

A distracted Georgie must step up when a jungle training exercise spirals out of control.

Georgie and James are compelled to use every ounce of their training to evade capture.

Section struggle to meet Bones's expectations in Bangladesh.

2 Section have the camp on lockdown as Inspector Chowdhrey explains that the refugee route might be being exploited by yaba dealers, a local drug coming over the border from Myanmar. When Georgie meets Maya, a sex worker and yaba addict who is being treated at the clinic, she starts investigations of her own.

Ruby discovers an outbreak of cholera at the camp. 2 Section are tasked with protecting the arrested Inspector Chowdhrey as he is a potential key witness in bringing down the leaders of the yaba trade. They are all horrified when a particularly gruesome message is sent demanding his silence.

After another attempt is made on Inspector Chowdhrey's life, injuring Georgie, special forces are brought in to mount a daring mission to save Sumon.