暑假即将到来,米奇(黛米·洛瓦托 Demi Lovato 饰)怀揣着兴奋与期望,期待着和朋友肖恩(乔·乔纳斯 Joe Jonas 饰)、奈特(尼克·乔纳斯 Nick Jonas 饰)和杰森(凯文·乔纳斯 Kevin Jonas 饰)等人一起度过一段美好的夏利营时光,共同谱写音乐的梦想。 然而,令米奇没有想到的是,一个名为“夏令营之星”的新兴夏利营冉冉升起,吸引了大部分人的目光,就连夏利营女王苔丝(梅甘·洁特·马丁 Meaghan Jette Martin 饰)都被吸引了过去,这可怎么办是好?与此同时,奈特爱上了名为丹娜(克洛伊·布里吉斯 Chloe Bridges 饰)的美丽女孩,而丹娜所属的阵营,正是夏利营之星。为了决定去留,米奇等人只得和夏利营之星的成员们站上了擂台,等待着他们的,是一场充满了激情和挑战的精彩比赛。Mitchie can't wait to return to camp rock so that she and love-interest Shane can spend the summer making music and having fun with their friends and band mates. But when a rival camp, Camp Star, run by famous music producer Axel Turner opens across the lake, it causes many Camp Rock campers and counselors to ditch Camp Rock and join Camp Star. Mitchie finds herself too busy running the camp and preparing for the "Camp Wars" to have much fun, but Shane and friends help her open up and look on the bright side of summer. The Camp Rock gang spends the summer preparing for the dramatic battle of the bands; while still maintaining to have fun.