The trials and tribulations of criminal lawyer Jimmy McGill in the years leading up to his fateful run-in with Walter White and Jesse Pinkman.

Walter White, a New Mexico chemistry teacher, is diagnosed with Stage III cancer and given a prognosis of only two years left to live. He becomes filled with a sense of fearlessness and an unrelenting desire to secure his family's financial future at any cost as he enters the dangerous world of drugs and crime.