Extremis The Time Treadmill Ron Miles 12th DoctorBill PottsNardole May 22 2017 No spoilers: Extremis is far and away the best episode so far of the new season. Questions are answered, a three story cycle is kicked off in style, and Nardole is a not-at-all-secret badass. Babydoll. < Previous Post The Damn Daleks are Dead Next Post The Perils of Archaeology