A group of high school sophomores enjoy many adventures throughout tenth grade. Stuck between "kid-hood" and adulthood, the close-knit group crashes head first into their most formative year of high school. They're joined by Mr. McKee, the newly hired janitor of the school, as he weaves his way through the hallways, mop in hand, observing the exploits of his sophomore son Jeremy and his lively gang of friends. Inside the classroom, their beloved American history teacher, Cap, wants life to be just as much fun as it is outside the school walls, while Miss Hutz, their feared math teacher, would rather everyone shut up and sit still. While Jeremy and Lucille get inspired by Cap, their buddy Lionel plots revenge on Miss Hutz, only to find himself locked in her bathroom with his pants down. Meanwhile, Pam, takes her buddy Eddie on a beer run in the dead of winter. All's good, except for her mischievous little dog, Puffy, and Pam's minor inconvenience of not having a driver's license. In the center of it all is Sam, who's waited fifteen long years to get his chance to ambush the freshmen on "Freshman Friday." His older brother, "Blank," may act as a pseudo mentor to the sophomores, but his main purpose for senior year is to date every Asian girl in tenth grade. Along the way, a group of seventh graders, known as "The Strummers", led by the little "Casanova" Bob, plot an "end of the year" sleepover at their buddy Lenny's house. They like Lenny, but it doesn't hurt that his gorgeous older sister, Honey, sometimes sleepwalks with her shirt off. By the end of the year, whether they're a sophomore, Strummer, teacher, or parent, one thing's for sure, they're not freshmen anymore.