[Coleman]

Are you missing the fact that his heroic actions in the diner gave him national news...which in turn brought the mafia family looking for him? That's how they introduced Ed Harris into the film. He realized that was him once he saw the footage on the news. Then once Harris was dead he had to finish the root of the evil and go after the other dude or he'd keep coming back for his family. I didn't think it had 3 different plots at all. Everything seemed pretty cohesive.