The team goes to Afghanistan at the request of sergeant Scott Lambert to see if human remains found at a charity water supply project are those of his brother Daniel,missing for five years and presumed murdered by the Taliban. On arrival in the country they encounter a road block and land mine and Jack's mistrust of the army does not go down well with ex-military man Sean,who heads the private security force. Nikki finds some bones but her examination is interrupted by a Taliban attack,repulsed by Scott's men. Project leader Fawzia believes it was motivated by opposition to Western influences,exacerbated by the pathologists' arrival. Fawzia shows Leo a ruined building where Daniel was apparently imprisoned and Jack finds proof of his being shot in the back of the head. Nikki however worries herself over the treatment of the Taliban prisoners,who include an English fanatic,after one of them is killed by Sean and his death made to resemble suicide.

The team continue to investigate the death of Daniel Lambert and make a significant discovery that changes the whole situation.