After the PTA of a conservative high school in Indiana bans same-sex couples from attending the annual prom, a gang of flamboyant Broadway stars try to boost their image by showing up to support two lesbian students.

The East High Wildcats are gearing up for big fun as they land the coolest summer jobs imaginable. Troy, Gabriella, Chad, and Taylor have scored sweet gigs at the Lava Springs Country Club owned by Sharpay and Ryan's family. Sharpay's first rule of business: Get Troy. As Troy experiences a life of privilege he's never known, will he give up the Wildcats and Gabriella to rise to the top?