Chloe, the protagonist, is the sole patent holder for a unique "V-strain" yeast used by a century-old Sonoma Valley winery. She faces relentless harassment and wage suppression from the winery's director, Derek. Derek, seeking profit, uses inferior tannin powder in production—jeopardizing a vintage batch worth fifty million—and conspires with investor Richard to seize her patent. Chloe counters strategically and within the rules; backed by the powerful financier Liam, she exposes the plot, joins forces to launch a hostile takeover of the winery, and rewrites the rules of winemaking in the valley.
