Greg Heffley 一直都在急于长大。 但变老真的如传说中的那样吗？ Greg 突然发现自己要应对男孩女孩聚会的压力、增加的责任，甚至是随着年龄增长而带来的尴尬变化。 这一切都没有他最好的朋友 Rowley 在他身边。 Greg 一个人能过吗？ 还是他必须面对丑陋的事实？

Greg Heffley has always been in a hurry to grow up. But is getting older really all it's cracked up to be? Greg suddenly finds himself dealing with the pressures of boy-girl parties, increased responsibilities, and even the awkward changes that come with getting older—all without his best friend, Rowley, at his side. Can Greg make it through on his own? Or will he have to face the "ugly truth"?