Meanwhile, the Doctor's ruse is exposed when a Dalek spots Taron's feet under the Spiridon furs, and they pursue the group into the base. Finally, the Doctor and the Thals get away, making their way back to the cooling chamber. Once there, the Doctor asks Rebec and Taron to barricade the entrance while he finds a way to keep the Dalek army from reviving. He and Codal decide to set an explosive in the wall of the chamber containing the Dalek army, which is slowly coming to life. In the meantime, the Dalek Supreme, a member of the Dalek Supreme Council, has arrived in a spaceship, to oversee the final stages of the operation, and exterminates the Section Leader for its incompetence.