In a fractured world, a formidable cowboy gunman known as "The Gunner with the Iron Hand" navigates a perilous existence as a government operative, taking on high-stakes missions to gain his freedom and ensure a better life for his young daughter. Residing in a secluded farmhouse near a military outpost, he is called upon for a vital task that only he possesses the skills to complete. As he battles fierce adversaries alongside his dedicated team, the Gunner is forced to confront the shadows of his past. Each mission tests his limits, compelling him to define his true identity as both a relentless warrior and a devoted father.