Seventeen-year-old Tanya's dream of a carefree summer is shattered when her overworked, stressed-out mom leaves for a wellness retreat, leaving Tanya and her three younger siblings in the care of a cranky and racist old babysitter. When the babysitter unexpectedly dies, the kids are left without any money and are hesitant to ruin their mom's much-needed break. So, Tanya steps up and takes charge. Posing as an adult, she lands a job as the executive assistant at a fashion company, suddenly thrust into the adult world of responsibility, office politics, and unexpected parenting. As she juggles her new role, her siblings, and the pressures of growing up too quickly, Tanya must learn how to navigate the complex world she's found herself in while keeping everything— and everyone— from falling apart.