The power of protagonist is measured by the strength of the antagonist but in this case the protagonist is the antagonist and vice versa. This series is real tour de force.
In first seasons Mr. Walter White slowly turns into The Heisenberg and uses his intellect and conviction to impress audience and creates the persona of an invincible guy and establishes it.
But when the Neo-Nazis comes on screen Heisenberg losses his domination, his family and seems vulnerable.
But here the director and writers comes into play which make you believe he has lost his dominance and makes him feel like a normal guy.
But during the finale you get shocked and witness the utter callousness and ruthless of the antagonist (Heisnberg) and at the same time what an average guy do good for his family and his partner Jassie Pinkman.
I highly recommend it to everyone who wanna witness raw violence, action and the limits an average person will go to make his family happy and accomplish something.