How does Hank's hunt for Heisenberg unfold?

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Key Moments in Hank’s Hunt for Heisenberg

1. Initial pursuit of blue meth and Heisenberg (Season 1–2) Hank learns of a new, ultra-pure blue meth circulating in Albuquerque and starts investigating lead drug dealers. This sets the broader DEA quest for the elusive Heisenberg. He first encounters signs in and around Tuco Salamanca, Jesse Pinkman, and the meth lab in the RV.

2. Killing Tuco and connecting the dots via contacts (Season 2) Hank leads the DEA raid that results in Tuco’s death. Jesse gets arrested and interrogated, but refuses to identify Heisenberg, hampering Hank’s efforts.

3. Gale Boetticher’s lab notes raise suspicions of Gale as Heisenberg (Season 3–4) After Gale is killed (so someone thinks Gale was Heisenberg), Hank examines Gale’s detailed drug lab journals. He also sees a reference to “W.W.” in Gale’s notes during a shared dinner with Walter, sparking uneasy rumors. Walt suggests “W.W.” refers to Walt Whitman, not Walter White.

4. Tracking Gus Fring and Los Pollos Hermanos (Season 4) Following he addition of Gale’s notes, Hank suspends official investigation when his superiors get involved, but he still shadows Gus Fring’s empire—including restaurant chains, nourishment of front businesses, and distribution routes.

5. Realization: Walt is Heisenberg (End of Season 5, Part 1) Hank’s breakthrough comes in Episode 8 of Season 5 (“Gliding Over All”). While using the bathroom at Walt’s house during a family gathering, he picks up Walt’s copy of Leaves of Grass by Walt Whitman. There’s a dedication from Gale to “W.W.” that matches Gale’s lab notebook. He “connects all the dots” and understands that Walter White is indeed Heisenberg.

6. Confrontation and evidence gathering (Season 5, Episodes 9–13) After seeing the writing in Leaves of Grass, in “Blood Money,” Hank confronts Walt, though Walt denies and deflects. Hank starts piecing together tangible evidence, including Jesse's testimony and tracking down Walt’s money (notably at To’hajiilee). Tensions escalate, leading to a final showdown and Hank’s tragic death.

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If you want, I can map these against full episode titles or timestamps to help you trace the story more closely.