Friends 4 ever?

"When a student named Ashley enrolls at East High, Gabriella, who has plenty of experience transferring to new schools, offers to show her around. But Gabriella soon begins to wonder if Ashley is using her to get closer to Sharpay and Troy. After all, Sharpay is throwing a birthday bash at the local country club--the hottest invite of th year! And Troy's such a cutie--who wouldn't try to catch his eye? Will Gabriella find that Ashley is true friendship material, or just plain trouble?"--P. of cover.