Ruckus (1980)

Kyle Hanson is a Vietnam veteran whose traumatic war-time experiences have left him unable to rejoin mainstream society. When Kyle, unkempt and in dirty fatigues, stops in a small town for some food, the local bullies can't wait for an opportunity to harass him. After Kyle uses his Special Forces training to escape the bullies, he becomes the subject of a community-wide manhunt. Only Jenny Bellows, a local girl whose husband was declared missing in action in Vietnam, is willing to give Kyle a chance.