To replace his lost Hel, Rotwang the mad scientist built an evil robot. Under Joh Fredersen's orders, Rotwang gave the robot Maria's likeness to influence the workers.

This may not have been a great idea, because the robot was uncontrollable and its only desires were for chaos and destruction.

Seizing control of the workers, the robot soon brings on a revolutionary riot, destroying the engine of Metropolis and flooding the workers' own city.

Now the unstoppable robot works for its master, Rotwang, disguised as a new woman fighter to hide the truth from her manager Sister Josanna.