Walt and Jesse cook Tuco's two-pound order in the RV, working through the night to meet the deadline. Walt is meticulous and refuses to cut corners despite Jesse's urge to rush. The cook yields their purest batch yet. They arrange the delivery with Tuco at his headquarters. Tuco tests the product, declares it excellent, and pays the fifty thousand dollars as agreed. He then immediately demands double the quantity for the next delivery, on a tighter schedule, making it clear this is not a request. Walt hesitates but agrees, recognizing that refusing Tuco is not a realistic option. Skyler's suspicions about Walt intensify. She discovers a second cell phone hidden in Walt's belongings — the prepaid phone he uses to communicate with Jesse. When she confronts him, Walt claims it was a replacement phone he bought at the school but forgot about. Skyler does not believe him and begins quietly investigating on her own, checking phone records and tracking his absences. Hank celebrates a promotion within the DEA's Albuquerque office. At a family dinner, he describes the blue meth case to the table, explaining that the product has disrupted the local drug economy because of its superior quality. Walt listens intently, masking his reaction, and asks casual questions about the investigation that Hank answers without suspicion. Walter Jr. proudly congratulates his uncle on the promotion. After dinner, Walt processes what he has learned: the DEA is actively hunting the source of his product, and his own brother-in-law is leading the effort. Jesse grows increasingly anxious about working with Tuco after witnessing his volatility firsthand. He tells Walt they should find another buyer, but Walt argues that Tuco's volume and cash make him irreplaceable for now. During their next delivery, Tuco's erratic behavior escalates — he beats one of his own associates nearly to death in front of Walt and Jesse over a minor perceived slight. Walt and Jesse stand frozen, unable to intervene. As they leave, both understand they are now trapped in a business relationship with a man who could kill them on impulse. Walt drives home in silence, parks in his driveway, and sits staring at his house — the family inside unaware of the danger he has brought into their lives.