I was deeply unimpressed with the previous Six/Davros encounter. But I have to say this really grabbed me; it's very much a story of Mel and Davros, with the Doctor in a less prominent role, and both Langford and Molloy really shine. I especially loved the development of Dr Vaso as a kinder, gentler Davros; and the origin story of the Mechanoids, who were among the few redeeming features of The Chase. ( )