When Chad Danforth ( Corbin Bleu), Troy's best friend and fellow basketball star. Hearing a cell phone go off, the rich, spoiled, self-centered, narcissistic, privileged and powerful Drama-Nazi Evans twins, Sharpay ( Ashley Tisdale) and Ryan ( Lucas Grabeel) naturally assume it's one of their phones ringing, pulling them out and earning themselves detention, also. Gabriella sees that the call is from Troy, right before Miss Darbus ( Alyson Reed), their eccentric Homeroom teacher/Drama club president reprimands her for her cell phone, welcoming her to East High with detention. Gabriella happens to walk into the same homeroom as Troy, though she doesn't notice him until he, catching barely a glimpse of her, calls her cell phone. With a kiss, her mother sends her off to class. We learn that Gabriella's mother's company has transferred her to New Mexico, and that Gabriella was known at her other schools as the freaky genius girl. As Troy settles into his Homeroom, we see Gabriella and her mother being shown around the school by the principal, Principal Matsui ( Joey Miyashima). Troy is East High's primo boy attractive, popular, and the star of the basketball team. Sometime later, Troy is shown arriving at his high school, East High in Albuquerque, New Mexico. Sparks are obviously flying, so as the midnight countdown ends, they exchange numbers and part to wish their families a happy new year. After the song, they walk outside to watch the snow fall, where they tell each other that neither have ever sung professionally before. They start slow and shy, but after a moment, with the crowd roaring behind them, they lose themselves in the music, blowing everyone away with how beautiful they sound together. Gabriella settles down with her book, until she and Troy are randomly picked to sing karaoke. Troy and Gabriella both walk into the party uncertainly, as neither want to be there. Gabriella Montez ( Vanessa Hudgens) is blackmailed by her mother ( Socorro Herrera) into attending the teen party by holding her book hostage, while Troy Bolton ( Zac Efron) is stopped halfway through his basketball practice with his father, the high school basketball coach, Coach Bolton ( Bart Johnson) by his mother ( Leslie Wing), who has party plans, and also makes Troy attend the kids party. It's New Years Eve, and two students from separate lives are celebrating with their families at a ski resort.The synopsis below may give away important plot points.

High school musical junior