August "Auggie" Pullman (Jacob Tremblay) is a 10-year-old boy living in North River Heights in upper Manhattan, New York, with his mother Isabel (Julia Roberts), father Nate (Owen Wilson), older sister Olivia "Via" (Izabela Vidovic), and dog Daisy. He has a rare medical facial deformity, which he refers to as "mandibulofacial", and has undergone 27 different surgeries as a result. Auggie has been home-schooled, but as he approaches fifth grade, his parents decide to enroll him in Beecher Prep, a private school. Before the school year begins, Auggie meets with Mr. Tushman (Mandy Patinkin), the principal, who arranges a tour for him with three other students: Jack Will (Noah Jupe), Julian Albans (Bryce Gheisar), and Charlotte Cody (Elle McKinnon). When school starts, Auggie is initially ostracized by nearly the entire student body, but soon forms a close friendship with Jack.