Spending his life following the most dangerous mercenary on Earth, Deathstroke the Terminator, around the world on his adventures, Major Wintergreen decided to keep a journal of their exploits. It contains insight into the psyche of Slade Wilson, and a first-person telling of the majority of Deathstroke's missions and activities. Wintergreen goes to great lengths to preserve the journal, despite the many risks of his lifestyle. He often insists that someday an account of the world's greatest mercenary's journeys must be "worth something."