Complete story — includes the ending
In a flashforward, Walt arrives at his dilapidated and fenced-off abandoned house to retrieve a hidden vial of ricin. In the present, Hank excuses himself from the party at Walt's house and suffers a panic attack while driving home. He then requests all files of the Fring case and matches the handwriting in Walt's copy of Leaves of Grass with that of Gale, confirming that Walt is Heisenberg. Jesse feels guilty over his role in Walt's meth business, particularly over Drew and Mike's deaths, and he throws his money away in a residential neighborhood. Lydia visits the car wash pleading for Walt's help, as the quality of the meth has fallen below acceptable standards since his retirement; Skyler firmly warns her never to come back. Walt's cancer returns, but he keeps the news a secret from his family. Upon finding his copy of Leaves of Grass missing, Walt immediately searches for and finds a GPS tracker on his car. Suspecting that Hank has now uncovered the truth, Walt confronts Hank, who punches him and accuses him of being Heisenberg. Walt warns Hank to "tread lightly".
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Breaking Bad season 5. HTML formatting and reference markers removed. · Content license