On the surface Gustavo Fring, or Gus to his employees, is a very charming and charismatic fast food restaurant manager. But behind closed doors he’s truly a horrifying drug kingpin psychopath, who has no qualms with killing his dealers. That’s when he meets Walter White, a chemistry teacher that has taken a liking to selling meth. Walt is the antithesis of Gus in every way, but they’re really similar, both are very calm, calculating, and intelligent. They are each other's kryptonite.