4. The Prison Massacre
Its the moment we know that Walt is now 'The Man'. Acting like Don Vito himself, Walt instructs a group of paid muscle to execute the swift and brutal murders of a dozen high-risk prisoners locked away for their respective roles in the Gustavo Fring organisation. Heisy can't have these guys living day to day with such incriminating evidence and once the money that buys their silence, dries up, there comes only one solution. Lets be clear here, the mild mannered teacher from Season One is now ordering a mass-murder. A mass-murder! He's going places the likes of Salamanca and Fring would never have dared. Once again, its the lack of emotion shown throughout the scene that provides the real chills. There's nothing more scary than a man without the sense to fear the repercussions of his actions and that's exactly the man we see in Heisenberg. I express that we see this within Heisenberg because I maintain there is a nugget of Walt left that is still just looking for a way out - a way back to normality. Will he find peace before the final credits role in the Summer? Or will Gilligan keep turning the screw to the point that the wood just splinters into a thousand pieces?