"The Prison in Space" by Dick Sharples, originally titled "The Amazons". The story also had a record of six other working titles during its development. Sharples returned to the idea of a female-dominated planet last attempted with "The Hidden Planet". The Doctor and Jamie were to be imprisoned, and Zoe was to start a sexual revolution and then be brainwashed. The four-part story was commissioned on 4 June 1968 and was intended to inject humour into the show. It was to feature Jamie in drag and end with Jamie deprogramming Zoe by smacking her bottom. The serial was rewritten to accommodate Frazer Hines' desire to leave by introducing a new companion named Nik, and again when he later decided to stay. Scripts for the first two episodes were delivered on 27 August 1968. The production team became unhappy with the serial, and when Sharples refused to perform further rewrites, the serial was dropped. The story was replaced by "The Krotons". It was later adapted as "Prison in Space" by Simon Guerrier for Big Finish's "The Lost Stories" series in December 2010. In 2011, an illustrated scriptbook was released by "Nothing at the End of the Lane".