Breaking Bad follows protagonist Walter White (Bryan Cranston), a chemistry teacher who lives in New Mexico with his wife (Anna Gunn) and teenage son (RJ Mitte) who has cerebral palsy.
White is diagnosed with Stage III cancer and given a prognosis of two years left to live.
With a new sense of fearlessness based on his medical prognosis, and a desire to secure his family's financial security, White chooses to enter a dangerous world of drugs and crime and ascends to power in this world.
The series explores how a fatal diagnosis such as White's releases a typical man from the daily concerns and constraints of normal society and follows his transformation from mild family man to a kingpin of the drug trade.
The experiment gets out of control in the second season of Breaking Bad.
As danger and suspicion around him escalate, Walt continues to straddle two conflicting worlds: A ruthless swirl of drugs, murder and mayhem on one hand, and a complex and emotionally fraught domestic life on the other.
In the no-holds-barred world of Walt White, the end justifies the extreme.