Documentary-style drama about a British peacekeeping unit sent to form the UN Protection Force assigned to war-torn Bosnia in 1992. The young soldiers think they have been given a soft option and are unprepared for the impossible dilemmas they face. As fighting in Bosnia intensifies, British soldiers are forced to watch ethnic cleansing from the sidelines. Horrified by the atrocities they witness, they have to decide whether to observe their personal codes of right and wrong or stick to the rules of engagement. In the midst of horror, poignant relationships develop.