Doctor Who and the Silurians: The Doctor and UNIT are called in when a research centre experiences problems.
Part 1: UNIT is summoned to Wenley Moor research station which is experiencing power losses. Part 2: Investigating the caves, the Doctor is attacked by a dinosaur-like creature. Part 3: The creature from the caves, wounded and dangerous, is on the loose on Wenley Moor. Part 4: The Doctor attempts to make peace between the humans and Silurians. Part 5: The Silurians infect Major Baker with a virus and release him to spread the infection. Part 6: As the Silurian plague quickly spreads, the Doctor desperately searches for a cure. Part 7: The Silurians intend to destroy Earth's protective Van Allen Belt, destroying mankind.
31 Jan - 14 Mar 1970
Warriors of the Deep: The Silurians and Sea Devils are provoking a war to leave them sole heirs to the planet...
Part 1: Seabase 4 is on alert as a strange craft approaches. Part 2: The Silurians and Sea Devils send in the Myrka to spearhead their invasion. Part 3: Vorshak's crew are cut down one by one by Sauvix's Sea Devil Warriors. Part 4: War is avoided but lives are lost; the Doctor reflects there should have been another way.