: The Doctor discovers troglodytes working in a nebula's core full of caves, overseen by men who use "fumigation" as a means of control.
: Critics generally find Part Two to be the weakest segment, describing it as "extremely dull" with roughly 20 minutes of "walking around and gas".
In this chapter of the four-part story, the Doctor and his companions explore a slave-labor mining society on a newly formed planet.
: You can find this classic episode on streaming platforms like Apple TV or Tubi .
: This is distinct from the 2006 film Underworld: Evolution , which is also sometimes colloquially called " Underworld 2 ". "Doctor Who" Underworld: Part Two (TV Episode 1978) - IMDb
[s15e18] Underworld 2 Apr 2026
: The Doctor discovers troglodytes working in a nebula's core full of caves, overseen by men who use "fumigation" as a means of control.
: Critics generally find Part Two to be the weakest segment, describing it as "extremely dull" with roughly 20 minutes of "walking around and gas". [S15E18] Underworld 2
In this chapter of the four-part story, the Doctor and his companions explore a slave-labor mining society on a newly formed planet. : The Doctor discovers troglodytes working in a
: You can find this classic episode on streaming platforms like Apple TV or Tubi . [S15E18] Underworld 2
: This is distinct from the 2006 film Underworld: Evolution , which is also sometimes colloquially called " Underworld 2 ". "Doctor Who" Underworld: Part Two (TV Episode 1978) - IMDb