Sarah's transformation was gradual but unsettling. The once-straight-laced teacher now found herself rationalizing her actions, convincing herself that the ends justified the means. As the stakes grew higher, so did her index score. Was she still a good person? She wasn't sure anymore.

Jesse was hesitant at first, but Sarah's desperation and determination eventually won him over. Together, they hatched a plan to cook small batches of the compound in Sarah's school lab, using the knowledge she'd gained from the VHS tape and some hasty online research.

Their operation expanded, and so did their problems. A rival methamphetamine producer, Tuco-like in his brutality, started sniffing around. Sarah and Jesse found themselves in a desperate game of cat and mouse, with their lives – and their morals – hanging in the balance.

The "Breaking Bad" index had officially reached critical mass for Sarah. Her life was now a precarious balancing act, teetering on the edge of chaos. How long would it take for her to slide further down the slippery slope, or would she find a way to redeem herself before it was too late? Only time would tell.

The phone rang. It was Tom. He had found a new job, one that would pay the bills and put food back on the table. He was proud of Sarah for keeping the family afloat, but... "Honey, I need to ask you something. What exactly have you been doing at school?"

The "Breaking Bad" index, if it existed, would have surely pegged Sarah's life as a 7 or 8 by this point. She was still a far cry from Walter White's ruthless efficiency, but the downward slide had begun.