凯西(斯宾瑟·格拉默 Spencer Grammer 饰)是学校里的交际花,外表靓丽个性热情的她在以联谊会著称的大学里为自己赢得了不少的人气,并且正在为了竞选下一届联谊会会长做着不懈的努力。最近,出了一件让凯西感到十分头疼的事情,原来,凯西有个弟弟名叫罗斯蒂(雅各布·扎哈尔 Jacob Zachar 饰),这位头脑十分灵光但个性却异常木讷的“宅男”即将成为她的学弟。 对于即将到来的大学生活,罗斯蒂也感到压力很大,一边是多姿多彩的课外生活,一边是自己和姐姐凯西之间紧张的关系,作为初来乍到的菜鸟,罗斯蒂能够处理好这一切吗?当被卷入姐姐和其男友之间的感情漩涡之时,罗斯蒂又能否全身而退呢?A Freshman arrives at his sisters college (much to her dismay). He decides to pledge a fraternity on campus. After catching his sister's boyfriend with another girl, he ends up at his rival fraternity trying to go from geek to Greek and grow up in the process.