'The Claws of Axos' is prime Pertwee Dr. Who: UNIT, The Master, Jo Grant clomping about in platform boots and flashing her pants. Originally called 'The Space Vampires' it features the Axons, a seemingly beautiful race of golden people who drop down to Earth in their diseased lung space ship with what seems like a very attractive offer: let us have some worthless minerals as fuel and we'll give you a wonder substance that will eradicate world hunger.
All is not as it seems, however, as the Harpo Marx haired Axons are actually ugly tentacled parasites, here to nick our stuff and suck the planet dry. Can anyone stop them? Yes, The Doctor. The Doctor will stop them. The lying golden bastards.