I've read a couple action/adventure stories where the main character is a man who is usually a former Seal, Green Beret, CIA Spy or other occupation which trained him well. He is retired and stumbles onto a girl or group and has to "come out of retirement" and use his skills and contacts to protect them. Usually protecting someone from the government or drug lords or other criminals. These usually aren't a stroke story and the sex if present at all isn't the main thrust of the story. The main character has to win the trust of the vulnerable girl or group. Unfortunately "action/adventure" isn't a category I can search by. Anyone know of stories or authors that are like this?