Fraternal twin sisters Emma and Lilly are as different as night and day. Emma, the beautiful blonde tomboy, would rather be riding a horse than anything else in the world. While Lilly, her shy redheaded twin, loves to be left alone to curl up with a good book. Emma and Lilly have an insatiable desire to play matchmaker, because their father is actually Cupid. Life gets complicated when they discover they're in love with the same guy and they become bitter rivals as they try to win his affection. But can Emma and Lily overcome their problems and use their matchmaking skills to bring their parents back together?

It's almost graduation day for high school seniors Troy, Gabriella, Sharpay, Chad, Ryan and Taylor — and the thought of heading off in separate directions after leaving East High has these Wildcats thinking they need to do something they'll remember forever. Together with the rest of the Wildcats, they stage a spring musical reflecting their hopes and fears about the future and their unforgettable experiences growing up together. Will their final show break them apart or bring them together for the greatest moment in Wildcat history?