After being diagnosed with terminal lung cancer, a struggling high school chemistry teacher makes a drastic choice to secure his family's future--turning to the drug trade with a former student.
Walter and Jesse scramble to deal with the consequences of their first cook, leading to a tense and unexpected dilemma. Meanwhile, Skyler grows suspicious of Walter's strange behavior.
Walter is forced to make a life-altering decision as he and Jesse deal with the fallout of their actions. Meanwhile, Skyler's suspicions continue to grow, and Hank begins to take notice of Walter's unusual behavior.
Walter reveals his cancer diagnosis to his family, triggering a range of emotional reactions. Meanwhile, Jesse struggles with his past as he attempts to reconnect with his parents.
Walter and Skyler attend a party at the home of his wealthy former colleagues, reigniting tensions over his past. Meanwhile, Jesse struggles to find legitimate work.
As his illness worsens, Walter adopts a more ruthless approach to the drug trade, while Jesse struggles to keep up. Meanwhile, Skyler grows increasingly suspicious of Walter's behavior.
Walter takes a bold step in expanding his operation, forcing Jesse to secure crucial supplies in a risky heist. Meanwhile, Skyler's suspicions continue to grow.
