PHILADELPHIA, the 1840s: a corrupt banker disowns his dissolute son, who then reappears as a hardened smuggler in the contraband slave trade. Another son, hidden from his father since birth and condemned as a former felon, falls in with a ferocious street gang led by his elder brother and his revenge-hungry comrade from Cuba. His adopted sister, a beautiful actress, is kidnapped, and her remorseful black captor becomes her savior as his tavern...