What does Jimmy Martino do when his twenty-something year old son, who he never knew he had, shows up toting his beautiful little girl with him? Well, he simply has to accept that he's just been grandfathered. A show about an ultimate bachelor who suddenly discovers that he is not only a father, but a grandfather as well. 该剧由《Full House》的主演John Stamos和《犯罪心理 Criminal Minds》的Paget Brewster主演。在这部单镜头喜剧里，John饰演了主人公Jimmy，一位单身已久的钻石王老五，但当他发现自己是一位父亲--还是一位外公，他的生活发生了翻天覆地的变化。
