“The Claws Of Axos” is an adventure of the eighth season of “Doctor Who” classic series which aired in 1971 featuring the Third Doctor and Jo Grant. It follows “The Mind of Evil” and it’s a four parts adventure written by Bob Baker and Dave Martin and directed by Michael Ferguson.

A spaceship crashes on Earth and the alien crew ask the Earthlings for help to refuel. In return, they offer Axonite, a mineral that can replicate any substance.

The Third Doctor (Jon Pertwee) isn’t convinced of the aliens Axons’ good faith and together with Jo Grant (Katy Manning) investigates the nature of Axonite. However, there are many interests at stake and Brigadier Lethbridge-Stewart (Nicholas Courtney) has to face political interference.

“Inferno” is the last adventure of the seventh season of “Doctor Who” classic series which aired in 1970 featuring the Third Doctor and Liz Shaw. It follows “The Ambassadors of Death” and it’s a seven parts adventure written by Don Houghton and directed by Douglas Camfield.

“The Invasion” is an adventure of the sixth season of “Doctor Who” classic series which aired in 1968 featuring the Second Doctor, Jamie and Zoe. It follows “The Mind Robber” and it’s an eight parts adventure written by Derrick Sherwin and directed by Douglas Camfield.