This story is mostly about this guy. He's Doctor Who's worst enemy, even though we've never heard of him before.
He's called "The Master" and he has made a number of fairly bold fashion choices. He turns up at a circus, as you can see, and instantly starts bossing people about and telling them to be evil.
Everyone is intimidated by the severity of his jacket, so they do as they're told. Watch out, Doctor Who!
Also new this series is Jo Grant. She's the new companion, and she's fab.
Look at her lovely smile. She's so charming! Which is a good thing, as she's almost completely useless and nearly gets Doctor Who killed on a regular basis.
The Master's evil plan involves using all the stuff in this room, which is up at the top of a big telescope.
To his horror, when he gets there, he meets a weird bald man eating an egg.
You can tell by The Master's face that he hates all the things that are happening to him right now.
The Master's reaction is to shoot bald-egg-beard man with a special space gun.
Killing people doesn't matter to The Master. He doesn't even look like shooting this guy is the thing foremost in his mind.
He's probably thinking about something else, like why black clothes never stay truly black for very long, once you've washed them a couple of times.
Here's yet another new character! This story is full of them. This one is called Captain Yates. He's a complete pillock. Look at him, chortling away to himself and hoping Jo thinks he's amazing.
Jo does not think he's amazing. Maybe this is why she keeps nearly getting everyone killed - she's trying to get rid of Captain Yates.
Anyway. The story is also about these guys - the Autons. They were in it last year, and they were terrifying. Which is why this is called Terror of the Autons, I suppose.
They're made of plastic, and these ones are pretending to be policemen. The fat one still has a pretend face on, so he can get close to humans without them screaming and running right off. That makes them harder to kill.
The other has had his pretend face ripped off, so we can see how evil he looks. Which is to say, very. And their hands have come off! Nightmare.
Zzzapp! This is a great image. He looks super cool.
He's probably the most popular of all the Autons, and gets put on the front of the staff magazine and that kind of thing.
Later, another type of Auton turns up. This one looks like a doll, which is supposed to be a disguise, so you will take it into your house. Then it will come to life and do a strangle on you, and you will go "But it was just a doll!"
But, right, why does it look like the devil? Surely rule one of pretending-not-to-be-evil is "Don't disguise yourself as the devil"?
This is another, slightly more successful disguise. Still kind of nightmarish, though.
Given that their main idea is "Invade the earth by disguising yourself and blending in", it's a shame that the Autons have such a weird idea of what 'normal' looks like.
Anyway, the invasion doesn't work, even a bit. The Brigadier turns up, with all his friends, and blows them all up with guns.
Even in this moment of victory, you can see that Captain Yates is being annoying and that the Brigadier is already regretting letting him join in.