For High School Musical 2, the kids left the hallways of East High School for a summer of hard work in the local country club (think back to when Saved by the Bell did the same thing.) From here, the plot mainly just followed Sharpay (Ashley Tisdale) in her attempt to land the most popular boy in school, Troy (Zach Efron).
Now, like the first movie, this one also had elaborate well-choreographed dance numbers....in fact, I would say the dance scenes were much more complex than those of the original...however, unlike the first film, the dance scenes in High School Musical 2 just didn't seem to flow with the "plot" of the movie. I also couldn't help but be disturbed at how none of the actors/actresses seemed to age a minute. What drugs is Disney using to keep those slaves....oh, I mean actors...so young? And are Zach Efron's eyes really that blue???
My advice is to skip High School Musical 2 and just watch the original again!