The Long Walk Alone (Heisenberg's Theme)
performed by Dave Porter

In the aftermath of killing the drug dealers, Walt has a tense meeting with Gus who makes it quite clear that his patience has reached its limit. Walt professes not to know the whereabouts of Jesse who he claims has fled the State. Gus chooses Walt's new assistant, who turns out to be Gale. Walt knows that as long as he's the only cook available, Gus will have to keep him alive...

Walter, Jesse and Mike meet with Declan, without the methylamine. Walter suggests that he cook for them, while they take a 35% cut and pay off the $5,000,000 to Mike. Jesse still wants to quit cooking meth after he has seen so much bloodshed and, after a dispute, Walter eventually lets him leave but is not willing to pay Jesse any of the "dirty money" he has earned. Meanwhile Hank has been told to end his pursuit of Mike, so instead he follows the lawyer, David, who is laundering Mike's money. David gives in to the DEA, but Walter finds out and warns Mike, who tells him to get the emergency getaway bag he left at the airport. When they meet, Walter demands that Mike tell him the names of the nine people in prison whose silence Mike has been paying for. Mike refuses to meet Walt's demand, so Walter shoots him using a gun he found in Mike's bag. Mike appears to escape, but Walt finds him. He then realizes aloud that he could have gotten the names from Lydia, and apologizes to Mike, who asks Walt to "let him die in peace". Within a few moments, Mike dies and falls to the ground.

Walt illegally buys and begins carrying a Snubnosed revolver but Mike soon tells Walt he'll never see Gus again. Jesse, in an attempt to distract himself from having murdered Gale, buys an elaborate stereo system and throws an ongoing party with Badger and Skinny Pete. Hank continues to push Marie away. Skyler attempts to buy the car wash but the owner angrily refuses. Walt goes to Gus's home, presumably to kill him, but receives a call from Tyrus telling him to go home. Walt later follows Mike to a bar, tells Mike that he might be in danger as well, then asks Mike to get him in a room with Gus and Walt will "do the rest". Mike punches Walt, kicks him twice on the floor, then leaves. Badger and Skinny Pete leave Jesse following a binge of partying at his house. Jesse sits alone in front of one of his speakers, visibly distraught.