Thirteen-year-old Ronnie Hartman faces abandonment and the consequences of her own destructive behaviors as she navigates a critical period in foster care. Left behind by her mother and her mother's boyfriend, Ronnie is bounced between foster homes due to her history of lying and stealing. Her current foster mother, Alison, represents her final chance to avoid institutionalization. Ronnie desperately wants to be accepted by the popular girls, particularly Paige, but her attempts to fit in lead her to betray her only friend, Cat, setting off a chain of events that promises disaster. The narrative framework appears to be third-person limited, focusing on Ronnie's internal struggles and external conflicts.

The premise of 'Returnable Girl' sets up a compelling narrative focused on a troubled adolescent navigating the foster care system and the complexities of social acceptance. The story appears to delve into themes of abandonment, identity, and the consequences of deceit, suggesting a character-driven plot with significant emotional stakes. The conflict between Ronnie's desire for belonging and her self-sabotaging behaviors points towards a challenging but ultimately hopeful trajectory. The critical decision presented at the end indicates a focus on personal growth and the difficult choices involved in forming a family.