Jack
Jack is a scientist of sorts – an explorer. He lives a normal life with his two companions in his home in Beano, a small asteroid that orbits the earth. Unbeknownst to all parents on Earth, he quietly tunes in with the help of CHIP to search for and monitor little mysteries for Earth’s children. When one of those questions strikes his fancy, he goes on a mission to investigate, and unravel the mysteries.
Episode guide
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Bad Hair Day
Jack thinks that the kids' sudden perfect behavior is the result of brain damage from a recent haircut. So Jack retrieves their discarded hair (and a little extra for good measure) and cont…
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Bath Time
Jack goes into the sewer system to retrieve Sam's lost toy and ends up lost and stranded in the ocean. The only way back is for the aliens to shrink to microscopic proportions and use the e…
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Jackosaurus
When a mechanical dino that Jack has built runs amok, Nico has to use his knowledge of what caused real dinos to become extinct to get rid of the 30' rampaging T-Rex.
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Meteor Madness
Jack decides to "surprise" Nico and Dad by arranging for a meteor to land in the garden during a meteor shower. Unfortunately, Jack has to fess up that the meteor is really just a local roc…
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Hiccup Pup
The kids have their hands full trying to keep Rocket under wraps when the little alien dog gets a case of hiccups. Jack can't take him home -- Rocket's bouncing about like a rocket everywhe…
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The Jack Show
The ship gets accidentally magnetized when Jack takes a shortcut through an "off-limits" galaxy and Jack finds his every move being broadcast across the world. Jack and the kids must figure…
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Saturn's Rings
Jack has to find a way to rescue Rocket after the little dog accidentally launches the ship and gets it stuck in Saturn's Rings.
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The Black Hole
The kids get a crash lesson on black holes after Jack creates one for fun that quickly grows out of control when everything in the club house starts disappearing into it.
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Ear Wax
A pesky space bug hitches a ride to Earth in Jack's ship and somehow ends up trapped in Nico's ear. It's up to Jack to shrink down and go get the bug out while Sam tries to prevent Nico, wh…
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Mission: Ice Impossible
When Rocket accidentally licks a large avant-garde ice sculpture away, Jack heads off to Antarctica to find a similar-looking iceberg.
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The Food Chain Ate My Homework
Jack learns the hard way about Earth's food chain when he drops a miniature data dot which becomes dinner for various creatures in the food chain.
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Tummy Trouble
When Jack worries that Yoki's tummy rumbles might mean they're not allowed to see a movie, Jack goes down uninvited into Yoki's tummy to find out what's causing the problem.
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Do The Twister
Jack ultimately goes into a tornado to look for a piece of alien equipment that he's lost, not realizing that Mrs. Weebler has already found it.
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Swimming With Aliens
Jack reprograms the ship so it can be controlled by Nico's video game console to help the kids do their homework on the Great Barrier Reef. But it all goes horribly wrong when sees the cool…
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Let's Go Batty!
The aliens have to go into a cave and find a bat that's made of Jack's medal, even though a hypnotized Yoki and Chip believe that they've switched personalities.
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Web Of Trouble
When Jack accidentally rips a spider web, he decides to make the spider a replacement web. But making a web is trickier -- and stickier -- than the aliens had thought, and ultimately, the a…
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Ant It The Truth
Wanting to provide some ants with a nice new home, Jack inadvertently releases a colony of carpenter ants into Mrs. Weebler's house. Upon realizing his mistake, he shrinks down to explain t…
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Super Fly
After a fly accidentally gets caught up in Chip's enlarging ray, Jack tries to keep the giant fly out of sight, but he only succeeds in getting eaten by it.
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Dog Day Afternoon
Why are there so many different types of dogs? When Rocket is nabbed by the dogcatcher from a local park, he finds himself locked in the pound. Jack has to learn how to speak and control th…
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Dr. Jack
How do our bodies fight infection? When Nico gets sick, Jack shrinks down to help Nico's body fight off the attacking virus cells and finds himself under attack from Nico's white blood cell…
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Aliens!
Why do fireflies glow? The aliens are taking prisoner after Jack mistakes fireflies for fellow aliens and shrinks down to introduce himself, resulting in Mom, getting ready for her big Mexi…
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Sink Or Swim
How do things float? When a Sample Collecting Machine breaks down on the ocean floor, Jack must find a way to get it back up to the surface in order to reset it before a hot air balloon pas…
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Beano Gets Cavities
What is a cavity? Jack decides to bring a blob of the bacteria causing Sam's toothache back to Beano for a pet. But after devouring a little alien food, "Strepto" runs amok and Beano develo…
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What Goes Up...
What is gravity? Jack creates an anti-gravity device so that the kids can experience micro-gravity. It's all fun and games until the switch gets accidentally reversed, then the garden becom…
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Botanical Menace
Why do some plants eat insects? A giant eight-foot carnivorous plant runs amok after accidentally getting a taste of Jack's super-strong alien fertilizer.
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Let It Bee
How does smoke affect bees? When a miniature Rocket gets stuck to a honeybee, Jack must go into a hive to rescue him and accidentally causes a swarm of angry bees.
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Cruise Ship
When Jack and Chip get lost in a series of deep underwater caves at the bottom of the ocean, they use the bioluminescent creatures that live in the ocean depths to help them find their way…
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Freezin' Hot
When Jack decides to help the kids make some slushy ice drinks, he rigs up a gizmo that quickly freezes over and causes a blizzard that almost causes the clubhouse to collapse.
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Rock N' Rose
After getting caught in a sandstorm in the Sahara Desert, Jack must figure out what's real and what's just a mirage so that he can find his buried ship before someone finds him.
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Stinky Business
Jack creates some serious stinky problems for the kids when he sets out to capture a scent bubble of skunk stink and gets way more skunk stink than he'd bargained for.
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Jack And The Snake
When Jack visits the Amazon, unbeknownst to him, a boa constrictor slithers into his ship... and hitches a ride to the kids' house, where it starts searching for dinner.
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Yeti!
The aliens get caught in an avalanche while searching the Himalayas for proof that Yetis exist.
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Somewhere Over The Rainbo
When Sam tells Jack that leprechauns keep pots of gold at the end of a rainbow, Jack decides to chase down a rainbow and meet some the little green tricksters for himself.
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Turn Left, Turn Right, Turn Left
Jack accidentally sweeps a GPS satellite into deep space while cleaning up some space junk. The errant satellite causes Dad's GPS to malfunction, and he and the kids get hopelessly lost on…
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See No Evil
Jack decides to use X-ray light to nab the raccoon that keeps tipping over Nico's garbage ... but everything goes wrong, and Rocket ends up in Mrs. Weebler's raccoon trap instead. Now Nico…
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Sleepwalking Jack
A tired Jack falls asleep during a "sleepover" with the kids and starts sleepwalking through his daily routine... causing all sorts of problems and noises that the kids must cover for... re…
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Jacky's Comet
Jack's plans to enjoy a fun "snow day" with the kids backfires when a large comet is reported heading for Beano. Jack hopes that this could mean a new posting to Earth, but to his dismay, H…
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Season's Change
Sick of the endless winter on Earth, Jack creates a large dome-shaped force field and cranks up the heat. But when the dome overheats, Jack must find a way to get rid of it and restore natu…
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A Robot's Best Friend
Chip bonds with an old robotic toy of the kids, so the kids suggest that Jack take the toy home with him... not realizing that Mom has put the toy aside for Mrs. Weebler's charity drive. In…
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Poison Ivy
After Jack experiences the effects of poison ivy, he decides to collect as much as poison ivy in the woods as he can, to get rid of it in order to protect the kids -- not realizing that the…
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Poison Pets
When Rocket licks a Golden Dart Frog, the venom on the frog's back causes Rocket to lose control of his tongue. Rocket's extra-long tongue is trashing the place. So Jack asks the kids to wa…
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Volcano No!
Jack has found his own place on Earth to vacation on... a remote volcanic desert island. But when Jack accidentally causes the volcano to start erupting, he has to find a way to stop the er…
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A Ghost Story
Jack becomes convinced that Rocket is sensing ghosts when he keeps barking at what appears to everyone else to be thin air. Ultimately, the pals discover that the "ghost" is really an overt…
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Eye Spy
After Jack and Chip replace Mom's regular contact lenses with their upgraded alien version, Mom is now able to see five times better, and she makes the kids' and Dad's lives miserable as sh…
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Rain, Rain Go Away
Against the rules, Jack brings a new ship to Earth to test out, unaware that the turbo drive's malfunctioning until it turns a regular storm cloud into a cloud of concentrated acid rain...…
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White Water Dizzies
When the family's raft drifts off during their white water rafting trip, Jack decides to get it back for them... not anticipating that the raft would get caught up in some rapids and that J…
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Jack's Fault Line
While treasure hunting, the kids and Jack uncover an old nearby mine shaft that leads down to a mining tunnel deep below the ground. Jack goes down to explore and accidentally causes an ear…
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Stingberry Jelly
After Rocket eats all of Mom's freshly made delicious fruit jelly, Jack sets off to find more jelly before anyone finds out. The aliens head straight for what Jack is convinced is the sourc…
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Bite Makes Right
Jack decides to try an indestructible chew toy that he's made for Rocket on the only animal with a similarly strong bite: the crocodile. The toy passes the test, but unfortunately, Chip is…
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Eel-Ectricity
When Rocket accidentally drains the spaceship of power somewhere in the Amazon, Jack can risk his job and call High Command for a boost, or he can try to catch some electric eels and harnes…
