It's the first day after winter break and the Jocks, Brainiacs, Thespians, and Skater Dudes find their cliques, recount their vacations and look forward to the new year. Basketball team captain and resident jock, Troy, discovers that the brainy Gabriella, a girl he met singing karaoke on his ski trip, has just enrolled. They cause an upheaval when they decide to audition for the high school musical that is being led...