请调整浏览器窗口大小或者请使用手机查看!
A dangerous experiment throws the Doctor into a doomed dimension
Carrington is planning to expose the aliens on live television and call for an interplanetary war and the Brigadier must rescue the Doctor and Liz in time to stop him.
The Doctor begins to suspect that penetrating the earth's crust will create more Primords but Stahlman sabotages the computer to stop him proving it.