Mike will learn what happened to Gus and want to get revenge on Walt and Jessie, thus revealing that Walt poisoned Brock. Walt will be the main distributer of methamphetamines and order the murder of Mike and convince Jessie that Mike is lying.
Hank learns that Walt was working in a meth lab, and finally decides to confront Walt on the matter. Walt will murder Hank and leave Marie paranoid, and she'll talk to Skyler (Who has now gained another 70 pounds), which will cause Skyler to threaten to go to the cops. Walt will remind Skyler that she can't and that she is now an accomplice to Walt. Skyler will try to run away with Walt Jr and Holly, but Walt won't allow that, and blackmail Skyler into staying.
Eventually after many breakfastes, Jessie will discover that Walt poisoned Brock, refused to help Jane, and ordered the death of Mike, and will try to get revenge on Walt. Walt will end up killing Jessie, and his cancer will comeback to bite him in the ass and he will die. Flynn will discover about his dad's deeds and will tell future Holly about them over a plate of p-p-p-pancakes at the breakfast table.
Then cut to...
Produced by Vince Gilligan