第一部：5個(gè)版本：
1 Troy Bolton and Gabriella Montez met over winter break after they were forced to sing together at a party. They became friends, and expected not to see each other again. But then, Gabriella's mother's company transferred her to another home in Alburquerqe, New Mexico, where Troy lives. Then, Troy and Gabriella end up at the same school after winter break. They decide to audition for their school's musical, and after they audition and get a call back along with Sharpay and Ryan Evans, the two actors who've been in every school musical, the whole school makes the biggest deal out of it. Then, Troy and Gabriella's call back was amazing, and Troy and Gabriella got the leading parts in the musical, and Ryan and Sharpay were the understudies.
2 At the winter, in a new years party. Troy and Gabriella, two strangers, sing together at a karaoke bar. Gabriella's mom soon transferred to New Mexico, so then Gabriella ended up in the same school with Troy. They both audition for a musical and performs the song "Breaking Free". Troy and Gabriella supposedly won.
3 The movie start out on New Years Eve when Troy Bolton and Gabriella Montez are at a Ski Resort During Winter break. Troy is a popular basketball player and Gabriella is a girl Einstein. They are forced to sing karaoke and afterwords exchange numbers. After winter break, Troy returns to his school in Albequerque New Mexico, where he is surprised to discover Gabriella is a new student. They become friends quickly and decide to audition for the Winter Musical in pairs. They get callbacks, and have upset Drama Queen Sharpay Evans and her brother Ryan. Troys friend Chad becomes upset because he is afraid that Troy will become distracted from the basketball championship. Gabriellas friend Taylor wants her on the Decathelon team and is willing to do anything to get her on the team. Chad and Taylor decide to film Troy saying how Gabriella isn't important after Chad tricks him into saying it. Taylor shows the video to Gabriella. Gabriella then refuses to do the call backs with Troy. Confused, Troy convinces Gabriella that he didn't mean it by climbing up into her balcony and singing to her. Meanwhile, Sharpay and Ryan manipulate the Callbacks to the same time when The Championship game is, and the Decathalon is. The two manage to get to the tryouts, and they're events and win the Callbacks, getting parts as the lead pair in the Winter Musical, Twinkle Town : ) The Movie ends with a big finale with the entire cast singing "Were All in This Together".
4 Two high school students who are worlds apart -- the school's hoops star and the president of the science club -- secretly decide to audition for their school's musical, a decision that turns both their world and their school upside down.
5 Troy Bolton and Gabriella Montez are two totally different teenagers who meet at a party while singing karaoke on New Years Eve. One week later Troy goes back to his high school, East High, in New Mexico to find that Gabriella is a new student there. They quickly become close, really good friends and accidentally audition for the school musical. After getting a callback, drama queen, Sharpay Evans and her sidekick brother, Ryan are furious. Then Chad, Troy's best friend and basketball teammate, and Taylor, Gabriella's new friend on the decathlon team must find out a way to make Gabriella hate Troy. After seeing that Troy and Gabriella sad about not talking, they soon support their choices and let them "break free".
第二部：3個(gè)版本：
1 The Wildcats are back. They start off getting out of school, where Shar Pay makes sure Troy has job at her country club. Troy then in returns gets everyone else a job at the country club too. Gabrielle is the new lifeguard, while Troy, Chad, and the others work in the kitchen. At the country club there is a talent show, which Sharpay and Ryan win every year. Kelsie had written a song for Troy and Gabrielle to sing at the talent show, which later on Sharpay takes (at a faster tempo) for her and Troy to sing at the talent show. Sharpay plots to take Troy away from Gabrielle,by getting him a better job than the rest of the Wildcats. Troy starts changing, all for a "scholarship", starting to act like a jerk, which results in Gabrielle breaking up with Troy, saying she doesn't belong there. After Troy loses all his friends, because he began acting like a jerk and had found out that Sharpay had made it where no Junior Staffers can perform in the talent show, he decides to do something about it, and asks for his old job back with the rest of his friends and quits the talent show leaving Sharpay with nothing, since she had ditched her brother to perform with Troy. She then goes back to Ryan, who had been working with the Junior Staffers on an act, who then leaves her saying she always wanted the spotlight, now she has it. Troy ends up doing the talent show, thinking that he would be performing with Sharpay. He learns a new song within a matter of minutes.
2 Troy is offered a job at Ryan & Sharpay's country club and ends up landing jobs for Gabriella, Chad, Taylor, Kelsi, Jason, Martha and Zeke. He is then introduced to Sharpay's parents and realizes that Sharpay can land him many opportunities and even a basketball scholarship. Meanwhile, while Zac starts hanging out with the rich folk, Chad is worried that Zac will forget his friends. Gabriella feels as though she is losing Troy to Sharpay. In the end, Troy will have to learn how to think about his scholarship without losing his friends.
3 Good-bye, classroom! Hello, summer! But for Troy, Gabriella, Chad, and Taylor, this vacation is no day at the beach. That's because they're all working at a country club founded by Ryan and Sharpay's family! And with the club's annual talent show right around the corner, Sharpay's competitive instincts are sizzling. She dumps Ryan as her singing partner and starts wooing Troy to join her onstage instead. Gabriella is less than thrilled that Troy has agreed to sing with Sharpay. How could he do that to her? Things are heating up on the lawns of high society. Will Troy and Gabriella realize that they're meant to be? Or is it already too late for them to sing one last song together?