They won't let him go without a fight
Jack wants to escape from his past. So far he has managed to get away from The Militia but they have sent a bounty hunter who will stop at nothing to bring him back. When he encounters a group of nomads he believes that he will be safe, but they are unwilling to accept him until they need to be saved from the problems he has caused them. The wilderness is a dangerous place and Jack knows only too well that he won't survive for long without their help.
The Stranger is a post-apocalyptic story of fear and survival.