As the first batch of Daleks go through the arch, the Doctor frees the others. The arch did not work on the Doctor because it was calibrated for humans, and he is not one. The Doctor has also substituted the Human Factor for the Dalek Factor on the arch, so the Daleks that go through will become "human" and rebel against the Emperor. The Emperor calls out his Black Daleks as the rebellion spreads and the City falls into chaos. Waterfield throws himself in front of a Black Dalek blast meant for the Doctor; the Doctor promises that Victoria will be taken care of, and Waterfield dies content. The Emperor is attacked by the "human" Daleks.