First Blood 1982
Rambo is a Green Beret Vietnam veteran who is harassed by a sheriff in a small town. Things escalate and Rambo ends up killing a police officer before fleeing into the forest. Authorities quickly realize that Rambo is a deadly killing machine as he takes out all the armed security teams in the area.
To capture Rambo, they seek help from his former commander, Colonel Trautman, in Vietnam. The Colonel knows his soldier very well and has only one recommendation for the officials: Prepare the body bags.