In the spring of 1968, the soldiers of Charlie Company, a unit of the 20th American Infantry Battalion, descended upon the small Vietnamese hamlet of My Lai. What began as a military operation quickly devolved into a horrific massacre, as the young soldiers systematically killed hundreds of unarmed men, women, and children. This documentary explores the harrowing events of that day, examining the psychological toll on the soldiers and the lasting impact on the survivors, while questioning the nature of duty and the moral complexities of war.