Taking place in an alternate history, the series will follow Cora’s (Mbedu) harrowing journey to freedom after escaping a Georgia plantation in the antebellum South for the rumored Underground Railroad, which is a secret network of tracks and tunnels run by engineers and conductors. Throughout her journey, Cora grapples with the memories of her mother, Mabel, who left her behind during her own escape while being pursued by Ridgeway (Edgerton), a bounty hunter fixated on bringing Cora back to the plantation she escaped, especially since he never caught her mother. Amazon When asked how the series will resonate with audiences once it’s finally released, Harper told ET that he hopes “that people can watch this and really connect with the story and get angry. I would also hope that people would take that time to examine who they would be in that world.”