For ten years, engineer Bill Markham has searched tirelessly for his son Tommy who disappeared from the edge of the Brazilian rainforest. Miraculously, he finds the boy living among the reclusive Amazon tribe who adopted him. And that's when Bill's adventure truly begins. For his son is now a grown tribesman who moves skillfully through this beautiful-but-dangerous terrain, fearful only of those who would exploit it. And as Bill attempts to "rescue" him from the savagery of the untamed jungle, Tommy challenges Bill's idea of true civilization and his notions about who needs rescuing.

托德·霍华德和其他上大学的人一样年轻。他只有一件事使他与众不同：就像他的表弟和叔叔一样，他有能力成为一只狼。当他成为狼人时，各级的事情都会开始做得很好。但并不是一切都会像一开始看起来那么容易。随着他的性格突然改变，他也将失去他所爱的人，他必须重新考虑是否真的值得成为大学的明星。杰森·贝特曼在这部《十八岁之狼》续集中接替了迈克尔·J·福克斯，该续集以青年喜剧的语气讲述了一个十几岁的男孩变成狼人的冒险经历。