Deadwood (Season Three)

In this final season of Deadwood, conflict is the main focus.  George Hearst (who is the father of William Randolph Hearst) moves to town and begins making trouble by attempting to buy mines from the locals.  While some of this occurs during season two, Hearst and Swearengen's conflict is the main focus of the third season.  All in all the series ends on a rather blah note, I don't know if the series got canceled after they finished season three or not.  If I had to pick, I would say that season three was my least favorite.

Rent or Own Scale: Rent but Own if you really like the series