Vigilante Force

A small California town is overrun with unruly and rowdy behavior from oil-field workers. Aaron Arnold, a Vietnam War veteran, and the brother of one of the locals (Ben Arnold), is hired to assist the police in restoring the peace. Aaron hires mercenaries trained in combat to help. After controlling the oil field workers, the veterans take over the town for their own not-always-legal purposes. Confrontation between the town police and locals and the mercenaries ends in violence.