Even old guys are dangerous if you push the right button. When the daughter of Jim Phillips, a long-retired Special Operator, is threatened by professional criminals, and the law itself restricts the response of law enforcement agents, Jim and his band of retired military buddies know that one more Op is called for. Using the invisibility of age, and the ability to plan for any contingency, a team of old friends gather to plan the elimination of a threat to one of their own. But how will they deter the plans of a professional criminal without taking his life and becoming criminals themselves? Old age is a time to sit in the yard with friends, drinking beer and telling war stories, discussing who's taking what meds and how the families are doing. It's not a time to be developing Frag Orders. But the lives of Special Operators are governed by honor and the responsibilities of citizenship, and the men in Robinson's Old Lions are unpredictable, making them as dangerous as the young lions in their prime...