This review contains spoilers.

Davros is continuing his experiments to push Kaled physiology beyond its current limits and engineer a species that is adapted to life on a highly polluted Skaro. This is the moment where Davros becomes Davros: the science centre is hit by a warhead and he’s irreversibly mutated into the person we know from Doctor Who.

This was a brilliant and chilling episode, my favourite of the four. I found it interesting that at one point Davros says that “purity is meaningless from a scientific standpoint” or words to that effect, because the TV show gives the impression that Daleks (which Davros will have created) are obsessed with purity and have had most of their emotions engineered out, just not anger (not coding anger as an emotion is ridiculous, but that’s another story).

I did also find it mildly hilarious when Davros had his near-death experience and his mom (who had died earlier) and others who had predeceased her were talking to Davros from beyond the grave. His mom had very Yzma-from-Emperor’s-New-Groove vibes for me. This is not a bad thing. ( )

http://nhw.livejournal.com/994704.html

Corruption reprises quite a lot of the material from the earlier BF Davros play, but in my view (and I may be in a minority) does it much better, going through the court politics around Davros's increasing hold over the Kaled Supremo, and of course what he finally does to his mother, a crucial bit of psychology, at the end of which he adopts her "children", the Kaled Youth movement, at the same time as preparing the inevitable future for the Kaleds' children as a whole. ( )