Everyone knows everyone in the tiny town of Bourne. But the Mitchell sisters are especially beloved, and not just because they're teenage triplets. Mirabel is the smartest person anyone knows, and no one is fooled by her wheelchair or her Voice app into thinking otherwise. Monday is the town's purveyor of books now that the library's closed. Mab's job is hardest of all: get good grades, get into college, get out of Bourne. For a few weeks seventeen years ago, Bourne was national news when its water turned green and was declared unfit for use, but it was too late for its residents. The girls' mother, Nora, is still fighting for justice. But between working two jobs' Bourne's only therapist and its only bartender, both in unusually high demand and battling a system rigged against her, it's a fight that seems more and more hopeless. But just when it seems life might go on the same forever, the first moving truck anyone's seen in years pulls up.