The division of the world's peoples into distinct "races" (black, red, yellow, white) is so entrenched in our way of thinking that to suggest otherwise borders, seemingly, on the insane. However, that is exactly what this film does. Race: The Power of an Illusion prompts us to question the validity of race as a biological fact. This documentary explores the science of race and challenges long-held assumptions that human diversity can be lumped into a few paltry categories. In part two of the film "The Story We Tell" prompts the question: Hasn't race always been with us? Explore the roots of the race concept, including the 19th-century science that justified it and how it gained such a hold over our minds. In part three "The House We Live In" asks, If race is not biology, what is it? This episode uncovers how race resides not in nature but in politics, economics and culture.