Doctor Who Season 14

8 “Empire of Death”

Sutekh reveals he latched on to the TARDIS after being defeated by the Doctor and has since left an incarnation of Susan Triad everywhere the TARDIS went. These incarnations kill almost all life in space and time.

It turns out that if you want to get rid of the most evil being in the known universe, all you have to do is put a leash on it and drag it outside like an errant dog.

Such a disappointment. !