Killers Three (1968)
It started out as a country picnic. But before it was over 37 men were dead!
Three friends from a small North Carolina town face bleak economic futures in the years following World War II. Johnny (Robert Walker) takes to running moonshine after his discharge from military service.
Their plans are thwarted when Roger uses too many explosives and the noise draws the attention of a Federal agent. Johnny kills the agent in this backwoods crime drama. Merle Haggard has a bit part and sings a few songs with the help of his band The Strangers. Clark was the producer who, with Michael Fisher, is responsible for the story.
~ Dan Pavlides, All Movie Guide