Gus, Mike, and Jesse travel to Mexico to fulfill a deal with the Juarez Cartel. Gus uses a bottle of poisoned Zafiro Añejo tequila to wipe out Don Eladio and the entire cartel leadership in a brilliant act of long-delayed revenge. Meanwhile, Walt misses his son's birthday after his fight with Jesse. Episode 11: "Crawl Space" Directed by: Scott Winant Written by: George Mastras & Sam Catlin Original Air Date: September 25, 2011

Happy hunting—and remember: Stay out of the territory. I am the danger.

Revealed as a deeply vengeful, patient strategist whose fatal flaw proves to be his personal hatred for Hector Salamanca.

Jesse has proven himself indispensable, successfully cooking the blue meth for the Mexican cartel and surviving a bloody coup alongside Gus and Mike. Skyler and the Business of Laundering

Breaking Bad Season 4 is widely regarded as one of the most intense, critically acclaimed sequences in television history. Originally broadcast in 2011, this season chronicles the escalating, deadly cold war between Walter White and the Gus Fring drug empire.

Walt and Jesse are held captive in the superlab by Victor and Mike, awaiting Gus's judgment. In a terrifying display of silent dominance, Gus arrives and uses a box cutter to murder Victor, sending a clear message about who holds the power. Skyler investigates Walt's sudden disappearance. Episode 2: "Thirty-Eight Snub" Original Air Date: July 24, 2011 Director: Michelle MacLaren | Writer: George Mastras

If you find a working index today, consider yourself a digital archaeologist. But if you don't, remember that the real "index" is the order in which you choose to watch Walter White descend. Start with Box Cutter . End with Face Off . And never ask about the lily of the valley.

In Season 4, the stakes shift from simple survival to an all-out war for dominance. Following the shocking climax of Season 3—where Jesse Pinkman kills Gail Boetticher to save Walt's life—Walt and Jesse find themselves prisoners of their own success.

The fourth season of consists of 13 episodes that chronicled the escalating cold war between Walter White and Gus Fring. It originally aired on AMC from July 17 to October 9, 2011. Episode Index Ep 1: Box Cutter

– Gus threatens Walt's family; Walt has a mental breakdown in the crawl space upon finding the money missing. Ep 12: