In a flashforward, Walter arrives at his dilapidated and fenced off abandoned house to grab the vial of ricin. In the present, Hank requests all files of the Fring case and matches the handwriting in Walter’s copy of Leaves of Grass with that of Gale. Meanwhile, Jesse throws his money away in a residential neighborhood. Walt’s cancer returns and after a chemo treatment, he finds his copy of Leaves of Grass missing. Walt immediately searches for and finds a GPS tracker on his car. Walt confronts Hank, and Hank reveals that he knows Walter is Heisenberg.