A group of slaves plan a daring escape from a Georgia plantation to cross 600 miles to freedom, aided along the way by a secret abolitionist couple running a station on the Underground Railroad, as they evade those tasked with bringing them back, dead or alive.

Season two of the 10-episode hour-long series, follows an unremitting struggle for freedom within a divided America on the brink of civil war, each side vying to enact their own justice. Set in the aftermath of the Macon 7's daring attempt to stage the greatest escape in history, this group of American heroes continues on their harrowing journey to freedom, with legendary abolitionist Harriet Tubman blazing the trail.