It’s 5:00 AM on a Sunday in Brooklyn. Craig Gilner (Keir Gilchrist) 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 (Lauren Graham and Jim Gaffigan) and younger sister are even awake, Craig checks himself into Argenon Hospital and is admitted by a psychiatrist. But the youth ward is temporarily closed – so he finds himself stuck in the adult ward. One of the patients, Bobby (Zach Galifianakis), 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 (Emma Roberts), who just might make him forget his longtime unrequited crush Nia (Zoë Kravitz). With a minimum five days’ stay imposed on him by the adult ward’s staff psychiatrist Dr. Eden Minerva (Viola Davis), Craig is sustained by friendships on both the inside and the outside as he learns more about life, love, and the pressures of growing up.