Season Four's explosive finale concluded with Walt (Bryan Cranston) defeating Gus (Giancarlo Esposito) in their season-long battle of wits, taking down the ice-cold kingpin once and for all. With Jesse (Aaron Paul) back on his side, now Walt is faced with the prospect of moving on in a world without his enemy. As the pressure of a criminal life starts to build, Skyler (Anna Gunn) struggles to keep Walt's terrible secrets.
As Walt deals with the aftermath of the Casa Tranquila explosion, Hank works to wrap up his investigation of Gus' empire.
Walt and Jesse seek out an unlikely partner for a new business venture. The DEA follows up new leads in its investigation.
Posing as a paralegal, Mike visits Dennis, the manager of Gus' industrial laundry, in jail. During the meeting, Dennis's lawyer, Dan, tunes out and listens to music: he doesn't want to hear what Mike has to say to Dennis about their ongoing collusion. Mike reassures Dennis that the deal he had with Gus is still in place and he should stay quiet.
Walt celebrates another birthday. Skyler considers her options. An associate complicates Walt and Jesse's plan.
Walt's team must get creative to obtain the materials they need to continue their operation.
Walt, Jesse, and Mike struggle over the future of their business, occupational hazards weigh on Jesse.
Walt takes control of business matters as Mike grapples with the consequences of his actions.
Walt ties up loose ends. Seeing the evidence of his success, he makes a startling and dangerous decision.
As Walt and Jesse adjust to life out of the business, Hank grapples with a troubling lead.
While Skyler's past catches up with her, Walt covers his tracks. Jesse continues to struggle with his guilt.
Jesse decides to make a change, while Walt and Skyler try to deal with an unexpected demand.
An unusual strategy starts to bear fruit, while plans are set in motion that could change everything.
Things heat up for Walt in unexpected ways.
Everyone copes with radically changed circumstances.
Events set in motion long ago move toward a conclusion.
The series finale.