Crisis Four McNab, Andy

Nick Stone is back in Washington, DC — not for a reunion, but because his former girlfriend Sarah has vanished. She knows too much, and the people looking for her aren't the forgiving type. What starts as a simple extraction spirals into something far darker: a conspiracy that reaches into the highest levels of power, with Stone caught between his orders and his conscience. Andy McNab writes with the authority of an ex-SAS operative who's been there — the action is visceral, the tradecraft is real, and the moral compromises feel earned. This is the fourth Nick Stone thriller, but it stands alone if you're jumping in mid-series. For fans of Lee Child's Reacher or Vince Flynn's Mitch Rapp — smart, fast, and unapologetically brutal.