about the blue meth being produced by chemist Walter White. Gus explains he has reservations about hiring Walt, but Gale insists Gus hire him because of his superior product. In the present, following Walt's order, Jesse Pinkman has killed Gale to foil Gus' plot to kill them. Gus' henchman Victor arrives at Gale's apartment and finds him dead, surrounded by neighbors who have called the police. Victor finds Jesse sitting in his car and forces him to return to the lab, where Mike Ehrmantraut is holding Walt. Mike is concerned that Victor was seen at Gale's apartment and calls to inform Gus. Victor realizes his own position is precarious and reveals he observed Walt and Jesse's work by starting to cook meth himself, hoping to prove his value to Gus. Skyler White observes Walt's car in her driveway and moves it a few blocks away so Walter White Jr. will not see it. She calls Saul Goodman to ask where Walt is, but Saul is paranoid because of Walt's falling out with Gus and is busy checking his office for listening devices. Skyler breaks into Walt's condominium with the aid of a locksmith but finds little of interest. Marie Schrader struggles to maintain her composure while caring for a belligerent Hank Schrader, who is still bedridden after the attempt on his life. Gus arrives at the lab but says nothing. Walt launches into a rambling monologue, hoping to convince Gus he needs Walt and Jesse alive. Gus maintains his silence while changing into hazmat gear and picking up the box cutter Gale used during the lab setup. He startles everyone by slicing Victor's throat, then coldly eyes Walt and Jesse to ensure his message was received. He quietly returns to his street clothes, then walks out, pausing only to say, "Get back to work." Walt and Jesse use hydrofluoric acid to dispose of Victor's body, the gun that killed Gale, and the box cutter. During breakfast, Walt insists Gale's death was necessary, but expresses concern that Gus will kill them at his next opportunity. Jesse believes it will be too much trouble for Gus to find another drug manufacturer, though Gus might make them wish they were dead. Police investigate Gale's apartment but overlook his lab notes. Production "Box Cutter", the fourth season premiere of Breaking Bad, was directed by Adam Bernstein and written by series creator Vince Gilligan. Filmed