In March 1988 in Belfast, there was a funeral procession of an IRA member. At this time British Army corporals Derek Wood and David Howes were attending the funeral. Suddenly they were shoot and killed. Apparently by mistake, but the documentary movie shows many behind this operation.
It's still not known why they took that route, and if the film lacked anything it was that it didn't examine this mystery more thoroughly. But what it did, sensitively and unsensationally, is show what barbarity human beings are capable of.