Premiership footballer Isaac Dreyfus finds his career in tatters after a sex tape links him to the brutal murder of a young woman, threatening to destroy both his reputation and marriage. He is desperate to prove his innocence, while Adam Freedman turns to a mysterious source for help to avenge the murder of his wife and child. Nikki finds it hard to deal with Leo’s death following the arrival of the new Lyell Centre boss, pathologist Thomas Chamberlain.
In the middle of Taliban attacks and a dangerous, alien culture, Leo begins a life-changing relationship with a charity worker as the team become suspicious of a British security firm’s torture of captured Taliban fighters. After a forensic breakthrough changes the course of the team’s investigation, a chain of events puts them all in danger.