While the Doctor languishes in an asteroid prison, a familiar threat is brewing on Earth. The plot revolves around a government contractor, Jo Patterson (Harriet Walter), who is using scavenged Dalek technology—leftover from the 2019 New Year’s special, Resolution —to build "Defense Drones." These robotic shells are marketed as a security force for the British government, with the current Prime Minister (played by a scene-stealing Chris Noth) hoping to use them to solidify his political power.
returns (first seen in "Asylum of the Daleks"), now acting as a galactic jury. They sentence the Doctor to "death by a million particles," a gruesome fate she only escapes due to her own cunning.
– A new variant introduced in this special, the Executioner is a massive, black-and-gold Dalek with rotating gun-stalks and heavy armor. It is tasked with "exterminating" the Doctor personally. While derivative of the "Supreme Dalek" designs, its sheer size and presence on the streets of London (blowing up a double-decker bus) provides genuine menace.
: The score utilizes a "funky" Dalek mutant reveal theme and a specific theme for the "Death Squad" Daleks. Emotional Beats : The final track, "