The Thals and the TARDIS crew attack the Daleks from all sides, but the Daleks fight back.
The Doctor and Susan are once again taken prisoner by the Daleks.
Ian and Barbara join a Thal force that will penetrate the Dalek city from the rear.
Pretending to be a Dalek, Ian finds that that he is trapped inside the casing.
Fearful of a Thal attack, the Daleks force Susan to invite the Thals to the city.
Looking for Barbara, the travelers realize they have been exposed to radiation poisoning.
The travelers explore a new world. Everything seems to be dead, but is it really?