the next morning, the doctor notices that there is a vast metal city over the jungle, and they all decide to venture into the structure. within moments, robot mechonoids arrive and capture them, taking them to the city. there they are locked in a cage-like room with a dishevelled man named steven taylor, an astronaut from earth who crash-landed on the planet two years earlier and has been kept as a prisoner by the mechonoids since then. the daleks now attack the city. the doctor and his party and steven manage to escape down some cables, while the mechonoids and daleks become involved in a pitched battle which devastates both sides as well as the building. the four companions flee to safety but are separated from steven, whom they presume to have been killed.