Description
An energy drain traps the Third Doctor and Sarah Jane Smith on the planet Exxilon with its hostile natives, causing the travellers to make an uneasy alliance with a Marine Space Corps expedition and a squadron of Daleks. The key to escape for all of them lies at the heart of a powerful and mysterious lost city, but only after a series of deadly traps.
Casts:
Jon Pertwee
Elisabeth Sladen
Duncan Lamont
John Abineri
Joy Harrison
Julian Fox
Neil Seiler
Arnold Yarrow
