Jesse struggles with the guilt of killing Gale, initially numbing himself with reckless parties before Gus and Mike "rehabilitate" him by bringing him into their inner circle to drive a wedge between him and Walt.
The season is defined by several legendary episodes that culminate in one of the most famous finales in TV history: Breaking Bad 4x11 Crawl Space: A Critical Guide Breaking Bad - Season 4
Following the murder of Gale Boetticher, Walt and Gus enter a cold war. Gus seeks to replace Walt with a more compliant Jesse, while Walt becomes increasingly paranoid and desperate to eliminate Gus. Jesse struggles with the guilt of killing Gale,
Skyler takes a lead role in the criminal enterprise by orchestrating the purchase of the A1A Car Wash to launder Walt's drug money under the guise of a gambling addiction story. Skyler takes a lead role in the criminal