Victoria, Kaftan and Viner, Parry's assistant, discover a chamber with a sarcophagus-like wall inset facing a projection device that was apparently used to revitalise the Cybermen. After Victoria is locked inside, the Doctor is called to help her escape, though he suspects Kaftan is to blame. Meanwhile, Jamie and Haydon, another member of the expedition, experiment with the control panel in another room. After activating a certain combination, a Cyberman emerges and a gun fires, killing Haydon. The Doctor investigates and deduces that the room is a testing range for weapons; the Cyberman being a dummy to be used for such purposes. With two members dead, Parry decides to call off the expedition, only to be informed by pilot Captain Hopper that someone has sabotaged the rocket ship, meaning they are left stranded until repairs are completed. Klieg finally opens the hatch and the team descend, leaving Kaftan and Victoria behind.