Billy Jack (1971) on Netflix

The half-breed Billy Jack lives in an Indian reservation protecting the Indians, the stallions and the students of the Freedom School, a peaceful art school run by Jean Roberts and where the students can choose their own destiny. When the teenage daughter of the corrupt Deputy Mike, Barbara, is retrieved by Sheriff Cole, she tells that she is pregnant and her father beats her up. Sheriff Cole and the local doctor ask Jean if she can lodge Barbara, she welcomes the traumatized teenager. But her father, together with the corrupt and powerful Mr. Stuart Posner and his coward son Bernard Posner, initiate a campaign to damage the school and humiliate the students while Billy Jack fight to control his temper against the bigotry and violence of the locals. But when he discovers what Bernard did to Jean, he has to use violence to defeat evil.