THIS is a live-action series about twins. Tommy and Dee Edison. Their pals regard them as scientific whizzes and quite rightly too, for they like science and excel in the subject. Not surprisingly, they are often drawn into adventures that range from zoology to stargazing. While Tommy is always coming up with new ideas for inventions, Dee is the one who makes these inventions work. Then, there is younger brother, Paul, who doesn't have the scientific aptitude but helps the twins just the same.