PlotEthan Hawke stars as abolitionist John Brown in this series based on the novel. "Onion" is a fictional enslaved boy who becomes a member of Brown's family of abolitionist soldiers and finds himself in the 1859 raid at Harpers Ferry. RATING 7.6 5k Votes GENREDrama, History, War STARSEthan Hawke, Hubert Point-Du Jour, Beau Knapp