The single-camera comedy series follows 14-year-old Harley Diaz as she maneuvers her way through the bustle of being a middle child in a family with six other siblings. The heartfelt and comedic stories of a big family find Harley devising creative ways to cope with - and stand out - in her family's busy suburban Massachusetts household. Her ingenuity often wins the day for the Diaz family, even with many different personalities living under one roof.