African-American scientist Dr. Kenneth Kincade moves his family into an affluent neighborhood, only to be greeted with threats and vandalism by their new white neighbors. Enter John Abar, leader of the militant Black Front for Unity. Abar becomes the Kincade’s bodyguard, allowing the good doctor to continue to his work on a serum that can make an ordinary man invincible. When the bigotry turns murderous, Dr. Kincade uses his serum to transform Abar into a black superman with fantastic physical strength and mental powers that set the stage for a remarkable climax!