It's 5 a.m. on a Sunday in Brooklyn. Craig Gilner is bicycling up to the entrance of a mental health clinic. This bright 16-year-old is stressed out from the demands of being a teenager. Before his parents and younger sister are even awake, Craig checks himself into Argenon Hospital. But the youth ward is temporarily closed -- so he finds himself stuck in the adult ward. One of the patients, Bobby, soon becomes both Craig's mentor and protégé. Craig is also quickly drawn to another 16-year-old displaced to the adult ward, the sensitive Noelle, who just might make him forget his longtime unrequited crush, Nia. During his five days' stay, Craig learns more about life, love, and the pressures of growing up.