Planet of the Spiders: Part 2

Planet of the Spiders: Part 2

Available on BritBox, Prime Video, Tubi TV
S11 E22: Lupton, now under the control of a giant spider, infiltrates UNIT HQ and steals the Metebelis crystal. But the Doctor is unwilling to give it up so easily and a chase begins.
Starring John Dearth, Christopher Burgess, Terence Lodge