The series tells the story of a group of British peacekeepers serving in a peacekeeping operation of the UNPROFOR in Vitez, in Bosnia during the Lašva Valley ethnic cleansing in 1993.
As the civil war rages on, the British soldiers face the demands of their peacekeeping job that threaten to tear them apart. By the time they return home, their lives will have changed in ways they could not have foreseen.