There is a terrible thunderstorm and all the lights go out in the lab. While Lisa and Dr. Wonder go to try to repair the problem, Billy decides he can make his way around the lab in the dark. So Paula turns off her flashlight and let's Billy grope around in the dark. He trips over things and breaks things. When Dr. Wonder returns he sees what a mess the lab is in. He helps Paula learn that if we don't let our light shine, people will just stumble around in the dark. And Billy learns to trust the light, not himself. We can fail. God will not.