Ooh, la la! A foreign exchange student named Jean-Claude has come to East High. He’s handsome, friendly . . . and he’s French! Jean-Claude is fascinated by American high school customs—almost as much as all the Wildcats are fascinated by him! Of course, Sharpay vies for his attention, but he’s even got Kelsi's head turning. When Kelsi finds out that Jean-Claude is also a musician, she becomes even more smitten! Will she be able to overcome her shyness—or will her attempts hit a sour note?

The East High seniors are super busy leading up to the last few weeks of school before they graduate. They are volunteering at the local community center for their senior project, and are gearing up for a huge graduation party at the Lava Springs Country Club! And Sharpay couldn't be more excited--she gets to direct a musical for her volunteer assignment! But when her production needs a major overhaul and Taylor and Chad stop speaking, the rest of the Wildcats realize that they need to work together more than ever!

An indie film produced by Sharpay and Ryan's dad is getting rave reviews, so he invites Sharpay, Ryan and their friends to LA for the premiere! Troy, Gabriella, Taylor, and Chad are psyched! What could be better than hanging out at the beach and rubbing elbows with the stars? Meanwhile, Sharpay is ecstatic—her dreams of being discovered are finally going to come true! However, she soon realizes that becoming famous isn't all it's cracked up to be. Will Sharpay get her big break, or will she say goodbye to Hollywood?

When East High puts on a battle of the bands contest, Troy is set to perform with his basketball buddies and Sharpay will be in her own girl group, but Gabriella wonders why Troy does not want to join forces with her again.

The Singularity. It is the era of the posthuman. Artificial intelligences have surpassed the limits of human intellect. Biotechnological beings have rendered people all but extinct. Molecular nanotechnology runs rampant, replicating and reprogramming at will. Contact with extraterrestrial life grows more imminent with each new day. Struggling to survive and thrive in this accelerated world are three generations of the Macx clan: Manfred, an entrepreneur dealing in intelligence amplification technology whose mind is divided between his physical environment and the Internet; his daughter, Amber, on the run from her domineering mother, seeking her fortune in the outer system as an indentured astronaut; and Sirhan, Amber’s son, who finds his destiny linked to the fate of all of humanity. For something is systematically dismantling the nine planets of the solar system. Something beyond human comprehension. Something that has no use for biological life in any form...