"Always remember that there will be times when you will have to stand up. Just be available when you are called. Be available " Meet Morgan & Clarke-Two inquisitive, fun-loving sisters who, with the help of a magical gift from their grandmother, travel back in time and learn tough life lessons along the way Their first journey takes them on an unsuspected and dangerous expedition on the Underground Railroad. There, they meet Harriet Tubman, who-with a rifle to ward off pursuers and their ferocious dogs in one hand, and a torch to light the darkness in the other-guides slaves from the South to freedom up North. Morgan and Clarke encounter unforeseen perils on their voyage, but their grandma's quilt shields them from all harm...And gives them the courage to stand up for what's right