Breaking.bad.s04e01.720p.x264.bluray.hindi.engl... Official

The Season 4 premiere, "Box Cutter," is one of the most unnerving episodes of Breaking Bad . Picking up right after the explosive S3 finale, the tension is unbearable as Gus walks into the lab. The infamous "box cutter" scene is brutal, quiet, and perfectly sets the stakes for the entire season – Gus is not to be crossed.