The BEST Episodes of Cyberchase
Every episode ever - ranked by fan votes!
Last Updated: Apr 9, 2021
Network: PBS
Three kids, Jackie, Matt, Inez, and their bird friend Digit, must save cyberspace from the evil Hacker with the use of strategy and math skills.

#1 - Lost My Marbles
Season 1 - Episode 1 - Aired Jan 21, 2002
An evildoer named Hacker kidnaps Dr. Marbles to a remote island and downloads a virus into Motherboard, so 3 kids from the real world called Inez, Matt, and Jackie must find Dr. Marbles.

#2 - Castleblanca
Season 1 - Episode 2 - Aired Jan 22, 2002
Hacker kidnaps Dr.Marbles once again to download his brain into his new robot henchman,Gigabyte.

#3 - R-Fair City
Season 1 - Episode 3 - Aired Jan 23, 2002
Digit arrives in R-Fair City ready to seek out Madame N. Cognita, who invited him vacation there. Only after she's used a crooked fairway game to trick him into a cage does he realize that she is Hacker in disguise. The kids, having been sent to rescue him, know only that he is in danger and that Motherboard has said something about unfair games. When a coin toss wins them a free ride from a cab driver named ""Lucky"", they take advantage of the opportunity to explore the city with a local. Lucky teaches them how to recognize a fair game--one in which everyone's chances of winning are the same--and leads them from site to site to test the games out. She explains that a rumor has been circulating that there are unfair games in R-Fair City, and that as a result fewer and fewer people have been coming to play. The kids think about why someone would want to make people doubt R-Fair City's games, and decide the resulting chaos sounds like something Hacker would orchestrate. Meanwhile, Buzz an

#4 - Snow Day to be Exact
Season 1 - Episode 4 - Aired Jan 24, 2002
The kids estimate where it is to try to keep the sunisphere of Solaria away from Hacker.

#5 - Sensible Flats
Season 1 - Episode 5 - Aired Jan 25, 2002
Hacker goes to jail for going to Sensible Flats and taking more land than ""Judge Trudy"" allows. Surprisingly, the kids want to bail him out...in exchange for Motherboard's antidote.

#6 - Zeus on the Loose
Season 1 - Episode 6 - Aired Jan 28, 2002
A cybersite is full of Greek mythology the kids have to go through to get a second chance from Zeus to get Pandora's Box from Hacker. For Real: Matt has his would-be girlfriend, Jennifer, coming over and he makes lemonade, only to have it lower in the glasses as more guests come over.

#7 - The Poddleville Case
Season 1 - Episode 7 - Aired Jan 29, 2002
Buzz and Delete steal power pods in Poddleville, making the town lose most of its power. The way to stop them? By using number patterns.

#8 - And They Counted Happily Ever After
Season 1 - Episode 8 - Aired Jan 30, 2002
Hacker goes to the happily ever after site and steals the town's king in order for a ransom of golden eggs.

#9 - Clock Like An Egyptian
Season 1 - Episode 9 - Aired Jan 31, 2002
The Incriptor Chip has fallen into a pyramid in the desert and Dr. Marbles was getting it, until he was imprisoned. The kids were called upon by Motherboard to go in and get Marbles and the chip. Unfortonatly, they have to get out before the gate of the pyramid has closed, locking them in for eternity. The gate drops down as the water drips from two cylinders. The kids find out there are 15 rings of water left and each ring drops out each minute, meaning they have about 15 minutes to go in and out. Matt's watch is broken and Jackie might sneeze again and lose count of time. However, they find an artifact moving at the same pace as the water cylinder, and then use a bunch of rubies and an even distributor to know how many seconds have passed and a ring and stick to know how many minutes they have left.

#10 - Secrets of Symmetria
Season 1 - Episode 10 - Aired Feb 1, 2002
Hacker steals the Symmetrizer to destroy Symmetria and cause havoc on other cybersites. But the kids trick him into thinking he'll find Dr. Marbles there.

#11 - A Day at the Spa
Season 1 - Episode 11 - Aired Feb 4, 2002
Hacker finds the Crystal of Calimar in order to be unstoppable. Feeling superior, the evildoer goes to a spa while the kids visit the northern frontier to give the crystal to Motherboard.

#12 - Of All the Luck
Season 1 - Episode 12 - Aired Feb 5, 2002
Convinced his past failures were the result of bad fortune, the Hacker determines to collect the 10 legendary Good Luck Charms of Cyberspace--possession of which, according to the Book of Power, will guarantee him good luck forever. By the time Motherboard learns of his intent, only one Charm remains at large. She sends Digit and the kids after it, but is unable to tell them which of the forest's many bunnies is the lucky one. Using the clues she can give them, they group the bunnies by characteristic, and when Motherboard remembers the exact qualities of the lucky bunny they are able to identify it quickly. Unfortunately, Buzz and Delete grab it and race to the Northern Frontier before the kids can stop them. Meanwhile, the Hacker has decided to replace the bungling robots. His order to ""Henchmen R Us"" for all the henchmen who are ""evil or cheap"" results in the arrival of a hoard of potential employees. After some consideration, he asks all the candidates who are ""evil and cheap

#13 - Eureeka
Season 1 - Episode 13 - Aired Feb 6, 2002
The kids use geometry to find Dr. Archimedes [and his house] so he can give Dr. Marbles the Encryptor chip.

#14 - Cool It
Season 1 - Episode 14 - Aired Feb 7, 2002
Buzz and Delete, posing as a delivery person, replace Motherboard's cryoxide with green sludge. When Digit arrives she is overheated and getting worse fast. He discovers the goop where the coolant should be and when the kids arrive tells them that if Motherboard doesn't get fresh cryoxide soon her CPU will melt. They find a container a little taller and almost as wide as the coolant tank, and Matt and Inez leave with it in Dr. Marbles' new 2-seater cybercoupe. Jackie stays to help Digit look after Motherboard, wearing one of the helmets Matt brought with him from batting practice to protect herself from the debris flying out of Motherboard's circuits as they heat up. When the coupe lands at Blue Falls Castle, Matt and Inez find the door guarded by the gnome they met on their previous visit to Castleblanca. They don't notice Buzz and Delete crash-landing in the moat, having been sent by the Hacker to ensure they don't succeed in saving Motherboard. To their surprise, Sams, the tw

#15 - Find Those Gleamers
Season 1 - Episode 15 - Aired Feb 8, 2002
Hacker talks the kids into entering a contest to find rare glowing butterflies called gleamers to start the Grim Wreaker. The prize: the Encryptor Chip, which ends up being a fake.

#16 - Codename: Icky
Season 1 - Episode 16 - Aired Feb 11, 2002
Hacker eavesdrops on the kids so he can find out where the cyberslug from Aquari-Yum is, so he can use it to suck the energy from Motherboard.

#17 - Return to Sensible Flats
Season 1 - Episode 17 - Aired Feb 12, 2002
The kids use line graphs to find out why the water from Sensible Flats is missing. Who's responsible? The Hacker, himself.

#18 - Problem Solving in Shangri-La
Season 1 - Episode 18 - Aired Feb 13, 2002
The kids realize that different people have different ways to solve problems. They must use them in a complementary way in a contest against the Hacker that was devised by a zen master who's holding them all captive. If they win, they'll go free; if they don't, the Hacker (voice of Christopher Lloyd) will.

#19 - Send in the Clones
Season 1 - Episode 19 - Aired Feb 14, 2002
Clones of Delete surround R-Fair City, so the kids and Lucky try to count how many are there.

#20 - Trading Places
Season 1 - Episode 20 - Aired Mar 14, 2002
The kids crash land on a planet where they don't use money - they trade things. Buzz and Delete become smart for once and the Hacker get shrunk by the shrink ray.

#21 - Less Than Zero
Season 1 - Episode 21 - Aired Jul 3, 2002
The kids use integers to see which floor of a building has Buzz and Delete, who are holding the cybercouncil hostage.

#22 - Model Behavior
Season 1 - Episode 22 - Aired Jul 10, 2002
When Jackie, Matt, and Inez arrive in Happily-Ever-After the residents are preparing to celebrate the erection of their brand-new You-CanÕt-Get-in-Here Skywall. They are unaware that Hacker, waiting just outside the cybersite, has arranged to have the Skywall shattered by the high note in the Wicked WitchÕs signature vocal solo. His agent inside has passed him a recording of her singing, and heÕs using it and a model of Happily-Ever-After to verify that his plan will work. As Spider struggles to orchestrate the event, Chicken Little raises an alarm: the dam is leaking! Efforts to stopper the hole are unsuccessful and water is rising fast until DigitÕs inspection reveals that the hole is larger on the inside of the wall than the outside. He makes a model of the shape of the hole and the kids use it to make a plug to fit the hole. They return to rehearsals, only to have WickedÕs rehearsal interrupted by the collapse of the platform on which she is standing. She quits the show. The

#23 - Fortress of Attitude
Season 1 - Episode 23 - Aired Jul 17, 2002
The Hacker's creating noise pollution by broadcasting his annoying voice across cyberspace from a statue of himself. The kids must shut it down, and to get past its booby traps, they must measure lengtate the measure

#24 - Size Me Up
Season 1 - Episode 24 - Aired Jul 24, 2002
When the kids are stranded on a giant island,they must get out to stop Hacker from sending an e-mail to Motherboard that contains a virus.

#25 - A Battle of Equals
Season 1 - Episode 25 - Aired Jul 31, 2002
Hacker devises a evil plan which is to pollute cybersites with CYBERSTATIC and the kids must solve problems to stop it.