In Victorian London, the Whitechapel section is a mechanized, steam-driven hell, cut off and ruled by two mysterious, mechanical gods-Mama Engine and Grandfather Clock. Some years have passed since the Great Uprising, when humans rose up to fight against the machines, but a few brave veterans of the Uprising have formed their own Resistance-and are gathering for another attack. For now they have a secret weapon that may finally free them-or kill them all...