Melody Island, a fantastic island somewhere in the middle of the Pacific Ocean. 　　Remi, Dodo, Fa, Sol, and Lati are singing and dancing as they go around on Melody Island just like any other day. They study with Gloria at school and Bolt teaches gymnastics. 　　The Doremi friends, watch stars and dream together at Dr. Tori's observatory on Melody hill. 　　There are friends yet to meet and towns yet to go in the unknown areas of Melody Island.

影片讲述的是六一儿童节快到了，以制作地下音乐带为生的胖子和瘦子盯上了天使合唱团领唱——7岁的郭朋朋，企图诱使他为自己录制一盘暑假畅销录音带，朋朋是个非常独立、自信的小男子汉，他不仅有动人的歌喉，还有一颗快乐、自信的童心。宋老师和孩子们发现上当受骗后，拒绝为他们工作。胖子和瘦子企图绑架孩子们，孩子们在“好人不怕坏人”的口号鼓舞下，发挥聪明才智，打败了胖子和瘦子。