A young girl named Marcie has a magical bus ride where the bus itself tells her the story of the mother of the Civil Rights Movement, Rosa Parks. Because she was black, Rosa had to walk miles to a one-room schoolhouse while white children could take the bus, and as an adult, Rosa could only sit in the back.

But when the day came that Rosa refused to give up her seat, she helped set the wheels in motion for black people to sit where they wanted. Marcie learns all this and more then gets a special surprise at the end of her trip!