Jack Reacher, or Blue Moon

This world is changeable, but occasionally everything becomes as it should.
In an unnamed American town, two criminal groups are fighting for control over his life. Everything goes on them - until Jack Reacher comes to the town.
He is trained to notice the little things.
Sitting in a night bus, Reacher noticed a sleeping old man, from which a puffy envelope with cash stuck out. And also-some young guy who is eagerly looking at this envelope.
The robber makes his move - the Recher makes his own. Checkmate.
The old man is frightened and driven into a corner. It turns out that a young robber is trifles. His real problem is much, much more serious. At one time, he made a couple of mistakes - and now he owes a lot of money from one of the city gangs. Recher decides to help him ...
The chances of success are much higher if Jack Reacher comes into business. It"s sure to be sure