Gus, Mike, and Jesse travel to Mexico to meet the cartel. In a legendary scene, Gus poisons the entire cartel leadership, narrowly escaping with his life. Jesse proves he can cook the formula alone. 11. Crawl Space
The "Blue Sky" meth investigation heats up. Hank shows Walt the lab notes found at Gale’s apartment. Fearful of being caught, Walt tries to stay one step ahead of both the DEA and Gus. 5. Shotgun index of breaking bad season 4
Walt purchases a snub-nosed revolver and attempts to work up the courage to kill Gus. Meanwhile, Jesse turns his house into a non-stop party hub to distract himself from the guilt of killing Gale. 3. Open House Gus, Mike, and Jesse travel to Mexico to meet the cartel
We learn Gus Fring’s backstory and his deep-seated vendetta against the Mexican Cartel (specifically Hector Salamanca). Hank starts to suspect Gus is "Heisenberg." Fearful of being caught, Walt tries to stay