With the intertwining relationships between teachers and students at its core, Hummingbirds is the story of a year in the life of the Carmine-Casey School for Girls, a wealthy prep school on Manhattan's Upper East Side. As the story unfolds, two worlds intersect -- the adult world becoming irresistibly seductive to the girls, and the dewy haze of teenage girlhood becoming a trap into which the flailing teachers fall. The web holding these characters together is an intricate one, full of loyalties, allure, competition and camaraderie.