Revelation of the Daleks
Thanks to michaellevenson1 for reminding me I had not posted on this one.
This is one of the best of Colin Baker's serials in my book.
The only part I didn't like was the DJ, that interrupted the story in my eyes, even though they used him later to assist Peri
Peri was also used quite well, when we see her kill the mutant to save the Doctor, it's her first time actually being directly responsible.
The story basically comes down to Davros, who is shown to be more human than ever and the dalek supreme who now places itself above Davros.
All in all, this is one I will revisit again, when I ever finish everything, actually I only have 3 more seasons, as I have already watched all of NewWho