The story in short: Some kind of evil people, have found out a way to extract bodily fluids from the base of the brain of unsuspecting victims. This fluid is then used for some reason or another. A couple of western heroes have to stop this in true 80's action style, big explosions and violence ensue.

Indian sheriff Thunder is transferred to a small town in the desert. He learns that the corrupt deputy is paid by the drug mob. To protect himself, the deputy sets a trap for Thunder and gets him convicted as dealer. Thunder manages to break out of the brutal prison camp and takes bloody revenge. However he cannot sufficiently protect his pregnant wife.

They took his wife... but he's still Walking Tall, they drew First Blood, but he's gonna fight back like Billy Jack.

1983 film by Fabrizio De Angelis