We open in space where a realistic portrayal of the radioactivity that is common when floating in open and radioactive space reminds us that Jedikiah is still in one rather ugly piece. Surely everyone’s least favourite tubby robot isn’t about to be rescued by a passing space ship?

A space ship goes past.

Is that or is that not a plastic drinks cup in the middle there? I promised myself I wouldn’t criticise the special effects but it is ribbed and not solely for her pleasure.

The passing space ship sends out a magnet to rescue Jedikiah. I hate this story already.

On board the space ship, David Prowse out of Darth Vader gives a comically dressed space rogue a cup of coffee. It’s no good. Androids can’t make good coffee apparently. If he’d said machines can’t make good coffee then it would’ve been a nicely satirical bit of workplace commentary.

Meanwhile, on Earth, Stephen and Kenny and developing a photograph in the lab’s lab.

While John and Carol play a made up game of strategy and skill. It looks like Carol in winning. John is getting tetchy.

John gets more than tetchy when Carol tries to read his mind using a special effect. That’s cheating. He’s got a point.

She denies it and is this the face of anything but a pure and honest angel?

She does a move and thinks it was really good. John does a counter move and undoes all the good she thought she’d done herself. Stalemate. So instead they discuss whether Stephen did or didn’t see that thing in hyperspace. What thing? This is a new thing. I wonder if that’s what he took the picture of. The thing. Things are well worth photographing. Especially ones with a definite article.

John says taking pictures in hyperspace is impossible. Carol says it isn’t impossible – they just haven’t done it yet. John says they never will. Carol says "conclusion" which I think is their made up game’s version of checkmate. John is appalled.

Stephen gets his photograph and – after a lesson in manners from TIM – goes out to tell John and Carol that… it hasn’t come out. Nothing. Zip. Nada. Nowt. John sees a chance to be right about something and counteract the effect of having lost their made up game. He is smug.

Back on the space ship, Jedikiah is feeling better. He tells the rogue that he owes him a great debt. Whoever designed the robot decided to give him hems at the bottom of his robot trousers. And cuffs.

The rogue explains it is the 26^th century – still some two centuries before Captain Maitland’s time then – and Jedikiah works out that he’s been adrift in space for 500 years. But – on the plus side – his head is no longer on fire. Swings and roundabouts. He asks about time travel. The rogue says it is possible under certain circumstances. Hmm – I wonder what he has in mind?

At the lab, Stephen is angrily toying with a cassette tape and saying that he didn’t imagine whatever it was he saw in hyperspace. I remember cassettes – they were ok.

Ginge arrives for no obvious reason just as John is explaining that it is impossible for anything to exist in hyperspace and Stephen is countering that it is impossible for a bumble bee to fly. They’re the same you know. Bees and hyperspace. Exactly the same. Have you tried hyperspacial honey? It’s very dry.

Ginge makes a quip and Kenny is abominably racist and calls him a "sap". Ginge counters with a rather half-heated cross-face chicken wing hold. He needs to hook Kenny’s left arm properly and try to link his own hands behind Kenny’s back. That’ll make the little bugger cry.

Stephen says they should at least check out his hyperspace theory. John says ok – where were these (meaning the cassette tape) photographs taken? Could they put photographs on cassette tape in those days?

Jedikiah shows the rogue that he can change his form. Rather than expensive old Francis De Wolfe he instead becomes the rather cheaper Roger Bizley.

They cut to a bizarre and ultimately pointless fish-eye lens. I thought at first this was some kind of alien point-of-view shot but it isn’t. They must’ve forgotten to take a fish-eye lens off the camera before starting.

The rogue explains that he hides in hyperspace most of the time – save occasional bobs into normal space to recharge the solar batteries – because he’s on the run from the galactic police. His roguish exploits once caused the destruction of a small planet.

The ship tour continues – this is not a public telephone kiosk, despite appearances, it is a disintegrator cannon. One that affords a little privacy.

This is a time key. It lets people unlock the secrets of time travel. Jedikiah is amazed. The rogue explains that Hitler was a confidence trickster from the 25^th century. It’s just an aside but a fairly offensive one.

Back at the lab, Carol and Stephen don their AE suits so they can go into hyperspace without breaking up (because the song is wrong - it’s actually really easy to do if you're in hyperspace which the lyricist neglected to mention because almost nothing rhymes with hyperspace).

Stephen also has an instrument with him. It measures life force or something. He waves it at Ginge and it beeps. Ginge is alive.

The tour continues in the treasure room where the rogue shows Jedikiah all the trinkets and wotsits he’s gathered over a lifetime of petty crime. It won’t get Jedikiah back in time though so he sulks all through the rogue’s tales of daring do and pillage.

The rogue explains that by his time there are millions of telepaths – they no longer go by the name Tomorrow People – and they are cowards who won’t fight and don’t steal. They just zap about the universe making everything peaceful. He doesn’t approve and takes it out on a passing candle.

Carol and Stephen have reached hyperspace and are looking for signs of life. It all goes a bit wacky for a few moments. Too many colours.

The tour reaches the menagerie which is empty except for a small boy. A small blonde boy that is the rogue’s prized possession. Very dubious. He’s a telepath – just the thing they need to activate the time key and send the ship back in time.

The reason the boy – called, rather disappointingly for a magical being from the future, Peter – cannot simply jaunt away is the medusa. A strange cross between a spider and a heart which robs telepaths of their special powers when they are in range.

Oh and it can change its size. Poorly.

The rogue puts the medusa away while Peter tells Jedikiah that the rogue is mad. It’s a very civil form of sheer animosity.

Carol and Stephen report to John that the life detector has detected life. John is sceptical. And smug. He’s doing a lot of smug in this episode.

This is one weird bit of telly – a small boy is being rotated in the background while a robot on a glowing throne drinks a foaming glass of what appears to be Ribena served at absolute zero.

And all while a bodybuilder in a loin cloth looks on.

Jedikiah suggests a bit of good cop bad cop – he’ll be nice to Peter in the hope that Peter will think he’s a friend and guide him down the time lanes. The rogue agrees – but only if their trip into the past can be to a time of his choosing. Roguish.

Jedikiah is nice to Peter. These days we’d call it grooming.

Especially when he makes faces like this.

He spins Peter a yarn – if Peter will take the ship to the 20^th century, Jedikiah has telepathic friends there who will rescue them both from the rogue’s evil clutches.

Wow – so that’s what a time machine looks like. Groovy.

Peter manipulates the machine and they're off – next stop, Century 20.

Back in the lab, the telepaths can hear a terrible noise. It must be the time travelling. Maybe the ship’s exhaust has a hole in it.

They’re getting closer. Although technically 1989 is the twentieth century.

Stephen and Carol are also hearing the terrible noise. It’s so bad Stephen has dropped the business end of his life force detector. Good to see hyperspace has gravity.

They’re going to land at the Tower of London. Or at least near a sepia photograph of it somewhere.

Everyone on earth is frozen. Even the beefeater guarding what we can only assume are the crown jewels.

It’s like the world’s most sexually disturbing coach party have come to London Town.

Carol and Stephen return from hyperspace and discover that everyone is frozen. In time. Literally frozen in time. Which isn’t the title of this episode so I don’t know why I’m stressing it.

Ginge made a mistake in being frozen with his eyes open – that’s really going to smart.

"TIM’s dead too…" blubs Carol.