Sherlock Holmes must track down his nemesis, Professor Moriarty, after the villain kidnaps Holmes' brother, Mycroft. The evil doctor is forcing his captive to decode highly classified military documents.

The Doctor and Jo find themselves trapped inside an alien peepshow machine which showman Vorg and his assistant Shirna have brought to amuse the populace of the planet Inter Minor. Can they escape Vorg and the ferocious Drashigs?

The blue crystal that the Doctor took from Metebelis III in a previous adventure is desperately sought by the Eight Legs, a race of mutated spiders, as the final element in their plan for universal domination. With help from an old mentor, the Doctor realises the only way to foil the plot is to make the ultimate sacrifice. The Doctor must risk death to return to the cave of the Great One and save the universe.

When the Second Doctor, Polly, Ben and Jamie visit a human colony that appears to be one big holiday camp, they think they have come across a truly happy place. Yet a shadowy presence soon makes them realise that the surface contentment is carefully controlled.

The original 1967 master recordings of ‘The Macra Terror’ were lost soon after the programme’s original transmission. However, audio-only recordings have survived and have been used here to create a brand new fully animated reconstruction of this lost classic.