Every slave plantation is a house of spies and intrigue. No slave walks a straight Line or has a single story - deep within their hearts is betrayal and insurrection. But against whom? Hiram Walker is a man with a gift and a curse. He was born between worlds: his father a white plantation master, his mother a black slave. And he was born with a secret, special power. Sold to a new mistress as punishment for trying to escape, hiram discovers her home is a secret hub of the underground Railroad: a training ground for its agents. With his special power, hiram fast becomes a highly skilled agent, retrieving the enslaved from the most dangerous circumstances - but betrayals lurk everywhere. And eventually hiram must risk everything to return to his father's plantation and free the friends he left there.