The Marine Corps reports that a roadside bomb killed fifteen Iraqi civilians in Haditha, but it is a lie — they were killed by U.S. Marines, and the government knew it. Academy Award-nominated documentary filmmaker Michael Epstein finds a way to film inside the defense of the Marine at the center of the investigation without the government's knowledge. What he eventually discovers over the course of a twenty-year investigation is a cover-up that reaches the highest levels of the United States Marine Corps.