I thought I’d read all the Jack Reacher books — but somehow missed the 7th, Persuader (2003).
And this is a good one.
Jack Reacher is working unofficially with the DEA to bring down a boy’s father, Zachary Beck, who is suspected of smuggling drugs under the pretext of trading in oriental carpets.
They stage a kidnap effort on Zachary’s son, Richard Beck.
Reacher rescues the boy gaining access to Beck by working as a hired gun/bodyguard.