In this story, Doctor Who meets the Daleks again. This is starting to happen quite a lot, and neither party is really excited by it anymore.
The look on Doctor Who's face pretty much says, "Here we go - another evening of going through the usual motions, as if it still means anything to either of us."
The Dalek gets through it by imagining Doctor Who as he was when he was younger. Which is to say, as a silver haired older guy who cackles all the time.
Jo, meanwhile, has been captured by invisible guys.
They wrap her up in this super comfortable looking blanket, and then just stand around admiring how lovely her hair is, and maybe drawing pictures of her sleeping and pretending she is their girlfriend.
There's some of the invisible guys. Except you can't tell they're invisible, because they're wearing those lovely fluffy blankets. I think they work for the Daleks, carrying their stuff around.
I suppose there could be loads more invisible guys, just wandering around naked, and not doing anything for the Daleks at all, and just laughing at the guys in the cloaks.
Hang on. That means that the guys watching Jo were also naked. That feels less cute now.
Doctor Who's evening with the Daleks is going badly. Neither of them can think of anything new to say to each other.
Also the Daleks are planning to explode a bomb that will kill everyone on the planet, which Doctor Who has told them time and again is something which gets on his nerves and he really wishes they would stop doing it.
The Daleks are notorious for nodding, but not really listening.
These Daleks look awesome, though, don't they? They are very well lit, and have amazing shadows.
They are excited by this, but also a little sad, because shadows are a constant reminder to them that they can't make shadow puppets.
Or do anything hand-related.
Or feel love.
It turns out there are millions of Daleks, all playing underground on the Planet of the Daleks. Soon it will be time to go out and do a big invasion of the whole galaxy.
They are pleased about this. It is boring in the cave, and they have sung all the songs they know.
This Dalek is a startling yellow and has a torch for an eye. All the other Daleks are crowding round him, pretending to talk about the mission, but really trying to find ways to ask him where he got all his cool accessories.
The reason he looks so amazing is because he is the King Dalek, and he has come to see how the invasion plans are going.
This is terrible news for the rest of the Daleks, because they have just been zooming up and down in the jungle, shooting at trees and pestering the invisible guys. That's not the mission, and they know it.
Doctor Who and Jo team up with these guys, who are Thals. They have come to fight the Daleks too, and are delighted to find that Doctor Who - the legendary destroyer of Daleks - is here to help.
Doctor Who is mortified. His technique of doing nothing at all, but then taking the credit for it later, has finally caught up with him. Now everyone expects him to have an actual plan.
Also, it has to be said, Doctor Who is way overdressed for this adventure.
Now that everyone else is dressed for serious space action, it throws into sharp relief that he is dressed as if he's meeting Oscar Wilde for an evening of opium and crumpets.
King Dalek chases Doctor Who and through the jungle for a bit. The other Daleks lag behind, saying things like, "We've tried this, it doesn't work," and, "Watch out for stinging nettles."
King Dalek doesn't care, though. He may be made of metal and have no soul, but the prospect of an exciting jungle full of invisible naked natives is too much to resist. This will be the beginning of a new exciting phase in his life, where he remembers that the job isn't everything.
Except it isn't, because a volcano made of ice explodes and buries him and all his friends in freezing sludge forever.
Eventually the Thals blow up the Daleks and Doctor Who runs away. It is clearly dawning on Jo that this is standard practice, and now she thinks about it, Doctor Who has almost never actually done anything to hasten the end of the story.
Doctor Who is trying to distract Jo by going, "Look - on the scanner - loads of Daleks being eaten by an ice volcano!" But it's no good. Jo knows that they never get to actually see anything expensive.