Walter White's domestic life continues to deteriorate; at the same time, his growing business venture aims to steal a train car chock full of methylamine.
In the aftermath of the train heist, Jesse and Mike decide to quit the business, leaving Walt to handle things on his own. Mike is being followed by the DEA.
Walt is out of the meth business and trying to move on with his life. Jesse tries to get rid of his money. Hank now knows that Walt is the famous Heisenberg.
Hank is determined to bring down Walt. Walt scrambles to hide evidence before Hank gets to it, and Skyler tries to stop Hank and Marie from taking away the kids.
Walt makes his next move against Hank, putting Hank in a tough position. Hank confronts Jesse and attempts to turn him against Walt, and Jesse decides it's time to move on. Meanwhile, Todd has taken over the business.
Walt discovers Jesse broke into his house and attempted to burn it down. Walt wants to protect his family so he moves them into a hotel for a few nights. Jesse makes plans to take down Walt.