
Season 21, episode 4
Warriors of the Deep (4)
- 25 min
With Silurians in control of the base, Icthar reveals his plan for a final solution to Earth’s human problem, which presents the Doctor a great moral dilemma.

Season 21, episode 4
With Silurians in control of the base, Icthar reveals his plan for a final solution to Earth’s human problem, which presents the Doctor a great moral dilemma.