Detectives question Jesse about Brock. Walt, Jesse and Saul realize that Gus may be vulnerable if he visits Hector at the nursing home. Walt visits Hector and offers him a chance for revenge against Fring. When Gus visits, Hector detonates a bomb, mortally injuring Gus and also killing himself in the process. Walt and Jesse destroy the lab.
Writer: Vince Gilligan