S4E8 · Hermanos

Complete story — includes the ending

In a flashback, Gus visits Hector in a nursing home and informs him of the death of his nephews after their attempt to kill Hank. In the present, Gus is questioned by Hank, the DEA, and the APD; Gus explains that Gale was a recipient of a college scholarship Gus created, and that his fingerprints were in Gale's apartment because Gale had recently invited him over to ask for money. The investigators are satisfied, but Hank remains suspicious. Still believing Gus is a drug kingpin, Hank enlists Walt to plant an illegal tracking device on Gus' car; Walt sees Mike is present and shows Gus the device, but Gus calmly tells him to plant it. Suspecting Jesse is becoming loyal to Gus, Walt again instructs Jesse to poison Gus as soon as possible. Gus visits Hector again, and in another flashback, Gus and his business partner Max meet Hector in 1989, when they approach drug kingpin Don Eladio. Gus and Max offer to produce high-quality meth for Don Eladio, with Max as the cook and Gus as the businessman. At Don Eladio's instruction, Hector shoots and kills Max as a warning to Gus. In the present, Gus hints to Hector that he will one day exact his revenge.