Based on the children's book series Ordinary People Change the World by New York Times bestselling author Brad Meltzer and illustrator Christopher Eliopoulos, the series introduces kids to inspiring historical figures and the character virtues that helped them succeed. Brad, Xavier, and Yadina need help deciding who the best superhero ever was. Luckily, Berby and the Secret Museum know just where to send them: back in time to meet Harriet Tubman, one of the leaders of the Underground Railroad. This episode-based 8x8 will focus on the traits that made our heroes great—the traits that kids can aspire to in order to live heroically themselves.