Hank (Dean Norris) lays out his case to Gomez (Steven Michael Quezada) and ASAC Merkert — Gus Fring (Giancarlo Esposito) is running a meth operation. The proof: Gus's fingerprints from Los Pollos Hermanos match those found in Gale's apartment. Season 4, Episode 7: "Problem Dog." Watch Breaking Bad Now: Some of the links above are affiliate links; we may earn a small commission if you click through and make a purchase. Chemistry teacher, Walter White, turns to cooking meth after a terminal cancer diagnosis, desperate to secure his family’s future. But his bid for fast money drags him into a violent criminal underworld, transforming him into the feared kingpin known as Heisenberg. Respect the craft. Subscribe: @ABQAftermath #BreakingBad #DeanNorris #GiancarloEsposito