Page "Davros" Paragraph 9

In the Fifth Doctor story Resurrection of the Daleks, a small Dalek force aided by human mercenaries and Dalek duplicates liberates Davros ( now played by Terry Molloy, with a new mask designed by Stan Mitchell ) from his space station prison, needing his expertise to find an antidote for a Movellan-created virus that has all but wiped them out.

Believing his creations to be treacherous, Davros begins using mind control on Daleks and humans, ultimately releasing the virus to kill off the Daleks before they can exterminate him.

Davros expresses a desire to build a new and improved race of Daleks.

However, at the end of the story, he apparently succumbs to the virus himself before he can escape, his physiology being close enough to that of the Daleks for the virus to affect him.

The hypothetical creation of a viral weapon that could destroy all living creatures had been the subject of a discussion between the Fourth Doctor and Davros in Genesis of the Daleks.