The History Machine broke out of the timestream and appeared in the far flung future home of the Jetsons, in their living room, no less. It was breakfast time, on a weekday morning during the school holidays. They explained their presence quickly.
"See Dad, I told you my timeline hypothesis was right," said Elroy (who would go on to prove it twice, in the animated features "The Jetsons meet the Flintstones" and "Jetsons Robo-Wrestlemania").
"Well I'd better get to work," said George, "I'm sure looking forward to starting off with the new promotion Mr Spacely gave me. These kids seem a lot safer than those other ones who came here a while back." (See this author's story "The Jetsons meet the Legion of Super-Heroes").
"You kids can keep Judy and Elroy company, and Rosey and I will cook a special feast for lunch," said Jane.
"Like, feast!" said Shaggy.
"Runch!" said Scooby.
"Oh no, not again. We have to break them up, so we can have one adventure in the future that has nothing to do with their meals," said Fred.
"Like, I didn't hear you complaining when we won enough money to live it up at the country fair," said Shaggy.
"Astro's due to report for a space exploration mission with Space Ace and the Space Mutts. Apparently they'll be working with Space Ghost and the Teen Force on this one," said Jane, "Perhaps Scooby would like to join in with the other dogs, and Shaggy can stay here." ("Astro and the Space Mutts", "Space Ghost", "Teen Force" and "Herculoids" were regular segments on "Space Stars" in 1981, with a "Space Stars Finale" segment of team-ups in the last part of each episode. Since Astro & the Space Mutts only teamed up with the Herculoids in the show, I thought they should team up with the rest in this story.)
"Well Scooby, would you like to go with Astro and the Space Dogs?" asked Shaggy, "I'm sure I can manage to eat enough of Mrs Jetson's cooking for both of us."
"I'm sure you could eat enough of it for ALL of us," said Daphne.
"Scooby-Dooby-Doo and Astro too!" said Scooby.
So Astro signed Scooby-Doo up for temporary membership with the Space Dogs. Space Ace flew their ship on an identical course, right behind the Phantom Cruiser, as Space Ghost, Jan, Jace and Blip, who were joined by So So, as soon as he learned that Space Ghost had another monkey on board. Bringing up the rear were the Teen Force (whom this author believes to be a 1980s network-censor-friendly reinvention of the Galaxy Trio) and their small friends the Astro-mites (whom this author believes to be a 1980s network-censor-friendly reinvention of the Space Kiddettes).
Blip was briefly jealous that So So could communicate with Jan and Jace and Space Ghost in English, rather than standard monkey talk, but soon became so absorbed in space travel.
Space Ghost led them to chart a course through an asteroid belt that had been causing trouble with space travel in the area lately. Occasionally, he would, at his discretion, use his power bands, to blast away asteroids which were causing a major obstruction to the space lane. While the Phantom Cruiser 's team led the way, Space Ace used their ship's onboard computer to log and chart the route they made, so that it could be reproduced as standard digital maps in the computers of all space ships in the future.
Meanwhile back in Jane Jetson's kitchen, Rosey had not long put the first dish into the automated cooking unit, when it opened the door by itself, and started firing food out at Jane, but not at Rosey.
The noise of their screaming remained unheard by the others, who were all rockin' with Judy Jetson to the latest tunes. Even Elroy was having a ball, learning to disco dance.
However, their own revelry was interrupted, when the compudisc player raised the volume all by itself, nearly deafening all of them.
Jane came out to investigate the noise.
"Judy! Turn that down," she said.
"I can't, Mother. It turned up by itself, and is overriding the switch," said Judy.
"Well pull out the power cord, then," said Jane, "We're having enough trouble trying to stop the automated cooking unit from attacking us with food. It's acting like it's got a mind of its own."
"Jinkies! Two household appliances defying their owners," said Velma.
"I think we've got a mystery on our hands," said Fred.
"And for once it's not about food," said Daphne.
"You're forgetting what automated cooking units are used for," said Shaggy.
"Mom, I think Velma and I could try to repair the cooking unit and the compudisc player, after we open them up and find the problems," said Elroy.
"The rest of us will help Judy and Mrs Jetson and Rosey get to the bottom of this," said Fred.
After examining both apparently faulty appliances, Elroy and Velma could find nothing wrong with their programming. In the mean time, many other household appliances began operating by themselves, even though they had not been switched on or used that day; and were attacking the Jetsons and the History Inc kids.
"This is crazy," said Fred, "Every computerized electrical mechanical unit in the house is acting autonomously and malevolently."
"Not EVERY unit," said Velma, "Rosey has not been affected."
"Not only has she not been taken over, but she's also the only family member who hasn't been attacked by the other units," said Daphne.
"That's right," said Jane, "The cooking unit only shot raw food at me, not Rosey, when it first malfunctioned in the kitchen."
"And I thought it was just the food finally starting to fight back," said Shaggy, relieved.
"Creepers, that's right. So whatever is causing this must have a benevolent attitude to Rosey. I think it's time to set one of my traps."
So, with Fred's leadership, the History Inc kids proceeded to build a multi-stage trap far too complicated to go into here. While they were doing that, the Jetsons unplugged every single electrical appliance in the entire house and outside it, (including that treadmill, which had caused George to shout, "Jane, get me off this crazy thing" as often as Fred Flintstone had yelled "Wilma" after being locked out by Dino).
To their surprise, Fred's trap caught another robot, a male robot with an unusually human appearance.
"You've got some explaining to do," said Fred.
"And some cleaning up to do too," said Jane Jetson.
"I am the robot Computron," said the robot, "Since my defeat and altered state at the hands of the Galaxy Trio, I have lived at peace with the humans on planet Orbis 4." (See "Birdman and the Galaxy Trio" episodes "Revolt of the Robots" and "Computron Lives.")
"But apparently not at peace with the humans on planet earth," said Judy Jetson.
"Hear me out," said Computron, "All of the robots on Orbis 4 were male. When my programming became more peaceful and human like, I felt the need for female companionship. Learning that earth had robots made in both male and female forms, I came here in search of true love. One day I saw Rosey out on an errand for the Jetsons, and I fell instantly in love. But I knew that a family robot would never leave the Jetsons to marry me. So I used what remained of my old powers to take over your appliances, in the hope that Rosey would be haunted out of your family, and then I could court her."
"Well I don't like the way you went about it, Mr Computron," said Rosey, "But I have been feeling the loneliness too, and you do stir up something in my transistors which I've never felt before. The only thing is that I don't want to leave the Jetsons. So I find myself torn."
"Who says you have to leave?" said Jane, "We could always use another robot around the house to help out, if you don't mind."
"It would be my sincere pleasure," said Computron.
"You can share Rosey's room," said Elroy.
"Only no more messing up our gear," said Judy.
"You have my word," said Computron.
Meanwhile, out in space, The Space Ghost Team and The Space Dogs reached the end of the asteroid belt, with the new route completely charted, when they were ambushed and attacked by Uglor, arch enemy (and perhaps the only enemy) of the Teen Force.
"I used to get like that when Peter Potamus first met me," said So So, "Then he gave some calming medicine he picked up in his travels, and I've been docile ever since."
"Even if that stuff will work on Uglor, how would we get him to take it?" asked Jace.
"I'll go on inviso power, sneak up behind Uglor and headlock him," said Space Ghost, "When I do, Electra use your mental power to make him open wide. In the meantime, Moleculad, Kid Comet, Space Ace and the Dogs do everything possible to keep Uglor distracted, so that he doesn't guess our plan. Jan and Jace, lend Blip's inviso belt to So So, and then approach Uglor on inviso power from the front and help So So to get the medicine into him."
The plan worked, and Uglor became as changed a being as Computron.
"And our computers can now analyse and reproduce the medicine, in case Uglor suffers another aggressive relapse," said Jan.
"It looks like we can take a long holiday on the other side of Black Hole X," said Moleculad.
"Hey, Scooby, tell your gang they'll have to join me for a drag race through time some day," said Kid Comet, "I can move my space cycle through time under my own power."
The Space Ghost team returned to Ghost Planet, and Space Ace and the Space Dogs took Scooby-Doo, So So and Astro back to the Jetsons' home.
Jane brought out some food that she'd managed to hide from Shaggy, and the two dogs and So So ate their fill.
Then the History Machine headed into the timestream.