Obviously, since this is a series, it is best to watch season 1 and 2 before viewing this third season Blu-ray. Once you start watching, it is difficult to stop, so having the entire series is a must. All of the episodes are tied together, but the plot is not linear. There are many references to previous episodes and events in this third season. Great series with quality acting and excellent visual/cinematic effects not found in many other broadcast series.