Cult of Skaro
The Cult of Skaro comprised Daleks Sec, Jast, Thay and Caan were a secret order of Daleks intended to further the Dalek race by any means necessary. They answered to no one, not even the Dalek Emperor.
The Human Dalek wants to put more Human in the Dalek Humans, and the Dalek Daleks disagree.
A sequence of “final” experiments, pig chaps, and what is ostensibly a Monoid with a Dalek for a hat.
It’s Rose’s last episode (sort of), with Sarcastic Daleks, a Doc who doesn’t give a damn, and a Tyler family reunion