Guest stars Penn and Teller provide assistance as Bill Nye examines light optics, and helps young science students understand the importance of this topic. Light is very complex, and the mysterious ways in which it works will be better understood after students watch Nye demonstrate its properties. He shows what happens when light bounces off a surface, how light can bend, and how colors appear. The explanations are relieved by healthy doses of music and Nye's clever blend of comedy and education.
