芝麻街众星云集、这回他们来到现代艺术重镇－纽约！他们所主演的百老剧将席捲全宇宙！猪小妹等人终于毕业了，到曼哈顿毕业旅行途中，他们决定找个製片当他们演出的製作人；好不容易找到一个年轻又有理想抱负的，却经过一连串的误解，使得灾难接二连三的来……
The film follows the story of three girls in contemporary Paris. One searches for her lost mother since she knows she's adopted. The other has come out of a coma and needs to have a love relationship aside from his mysterious father. The third one is a crook who redeems herself through love. The action is commented by songs and dance routines.
纳特伯恩学院是一所老牌的全是男生的寄宿学校，由于战时的种种限制，学校被告知另一所学校将与之合住。令人震惊的是，这是一所女子学校。两位校长很快就开始互相竞争，争夺魔法部的上风。但是一两次危机迫使他们合作。
