After witnessing Tuco Salamanca brutally beat his henchman No-Doze to death in the previous season's finale, Walt and Jesse realize they are in extreme danger.
Fearing for their lives, Walt proposes a plan to kill Tuco using ricin, a potent toxin. 1. Seven Thirty-Seven
The title has a dual significance that layers immediate plot goals with long-term foreshadowing: After witnessing Tuco Salamanca brutally beat his henchman
Walter White calculates that he needs exactly $737,000 to provide for his family after his death. " and "ABQ")
When combined with the titles of other episodes featuring black-and-white flash-forwards ("Seven Thirty-Seven," "Down," "Over," and "ABQ"), the phrase "Seven Thirty-Seven Down Over ABQ" is formed, foreshadowing the mid-air collision of a Boeing 737 at the end of the season. Plot Highlights