that killing Gus was the only course of action they could have taken. The final scene of the fourth season shows a potted lily-of-the-valley plant in Walt's backyard, revealing that Walt had poisoned Brock in order to regain Jesse's loyalty and spur him into action as part of Walt's plan to kill Gus. Season 5 Part 1 Jesse is upset by what happened to Brock and becomes obsessed with finding out what happened to the ricin. Jesse has Walt help him search Jesse's house for the cigarette containing the poison. Walt plants a replica of the ricin cigarette in Jesse's vacuum cleaner, which Jesse finds. Jesse then agrees to continue cooking meth with Walt. Soon afterward, Walt's manipulations of Jesse's feelings for Andrea and Brock cause him to break up with her so that Andrea and Brock will be safe from the effects of his involvement in selling drugs. He and Walt join forces with Mike to establish their own meth operation. After their supplier, Lydia Rodarte-Quayle (Laura Fraser), is unable to continue stealing methylamine precursor by the barrel, she puts them onto a way to steal 1,000 gallons from a train traveling through New Mexico. During the heist, their accomplice, Todd Alquist (Jesse Plemons), shoots and kills a young boy, Drew Sharp (Samuel Webb), who was witness to the crime. Jesse is horrified and decides to quit the meth business. Mike and Jesse want to get out of the business, and arrange for rival drug lord Declan (Louis Ferreira) to purchase the methylamine for $15 million. Walt refuses to sell his share, and Declan will not buy unless he gets it all. Instead, Walt makes a deal that enables Jesse and Mike to be paid, while Walt continues to cook for Declan. Hoping to lure Jesse back as his assistant, Walt refuses to pay him, and Jesse leaves, saying he would rather give up the money than continue in the drug business. When Walt decides to stop cooking, he goes to Jesse's house and pays him his share of the buyout. Part 2 Overwhelmed with guilt for Drew's death, and correctly guessing that Mike is dead, Jesse tries to give his money to Saul with instructions to give half to Drew's parents and the other half to Mike's granddaughter. When Saul refuses because doing so will draw too much attention, Jesse drives around town randomly tossing bundles of cash