A group of teenagers decide to take a vacation at the beach house of one of their fathers. The kid whose father owns the house just happened to accidentally kill his mother when he was a child. When they get to the house, the father has mysteriously disappeared.
新泽西少年丹尼尔(Ralph Macchio 饰)随母亲一起搬到了加利福尼亚的公寓中,母亲面对新生活踌躇满志,少年天性的丹尼尔也很快爱上了加利福尼亚温暖的沙滩,在那里,丹尼尔遇到了金发小美女艾丽(伊丽莎白·苏 Elisabeth Shue 饰)。想要接近艾丽的丹尼尔被姑娘的前男友强尼用空手道狠狠的教训,同样对空手道颇有兴趣的丹尼尔自尊受伤,但是仍未放弃和艾丽的交往,这激起了强尼和一干朋友们对丹尼尔长期的欺侮。万圣节舞会之夜,丹尼尔再次被强尼等人追打,丹尼尔居住的公寓中的维修工宫城(森田则之 Pat Morita 饰)先生及时出现,用空手道击退了强尼。宫城决定用两个月时间训练丹尼尔,令他可以击败强尼并领悟空手道的真谛…
Three middle-aged daddies visit California to have a marvelous time at the beach. When they learn that a nice apartment and an expensive cabriolet isn't enough for them to score with the chicks, they employ a student to help them. At first he's as disgusted of them and his job as his girlfriend, but soon they find out how to use the situation to everyone's benefit.