My four-year-old son called me from his mother’s house, sobbing: “Daddy, Mommy’s boyfriend just hit me with a baseball bat.” I was trapped twenty minutes away, listening helplessly as that man laughed while my little boy cried on the floor. So I called the only person who could get there first: my former military squadmate who lived right across the street. He thought he had hurt a defenseless child and would get away scot-free. He had no idea he had just awakened the wrath of the man who once saved my life.

Chad raised the bat with a terrifying grin on his face. “One more, Leo. For the road.”

He never got to swing.

The front door of the house didn’t just open; it exploded. The deadbolt tore clean out of the frame as Jackson’s boot slammed into the wood with the force of a battering ram. Jackson didn’t yell. He gave no warning. He stepped into the house with the calm, predatory focus of a man returning to a familiar battlefield.