Simka and Nolik enlist the help of their Fixie School classmates to beat Tom Thomas in a game of table hockey, but to win they must learn to work together as a team.
Nolik is sad that he can't go sledding with Tom Thomas, and so he pours oil on the desk to make it super slippery. Unfortunately his whole Fixie family ends up getting stuck in the oil slick.
Digit feels unprepared for his pack-o-mat exam. Nolik tries to help him out by getting Grandpus to reveal what the topic of the exam will be. If only Grandpus would stop changing his mind.
Fire, Verda, Digit and Toola have made plans to visit Simka like "real guests" who first ring the doorbell before entering. But their plan is blocked when they discover that the doorbell isn't working.
Tom Thomas agrees to take care of his friend's chameleon. When the chameleon escapes from its terrarium, Tom Thomas, Simka, and Nolik have to use their smarts to find him and catch him.
Tom Thomas' dad tells him he can join him on a business trip to Africa if he is as tall as the top of that continent on his wall map. When a water level confirms he isn't, Tom Thomas tries to figure out how to fake the results.
Papus wants to move because nothing in the apartment breaks anymore. Nolik and Simka think the only solution is to break things so Papus will have something to fix and feel useful again.
After Nolik makes a pack-o-mat out of modeling clay, Fire takes him around the apartment to fix everything ahead of Simka. Their sloppy work almost results in disaster.
Tom Thomas gets angry at Nolik, which makes Nolik get mad at Simka, who then gets mad at Toola. Toola convinces her friends to create a chain reaction of positive feelings.
The Fixie students think Grandpus is playing a trick on them when he is able to identify what is inside the boxes in Professor Eugenius' warehouse without even opening them.
Nolik becomes worried that Tom Thomas won't need him anymore as a friend after Professor Eugenius replaces the leg of Tom Thomas' favorite toy bear with a prosthesis.
Fire and Nolik decide to play a mean trick on Toola with a talking doll that Professor Eugenius brought to the laboratory. When Simka discovers what the boys did, she figures out how to get them back.
Grandpus finds Nolik's drumming disruptive to Fixie School, and so Nolik goes to practice at Tom Thomas'. But when Tom Thomas joins in, Nolik finds himself wishing things would be quieter.
After Tom Thomas breaks his brand new Christmas ornament, Nolik tries to cheer him up with a kaleidoscope. But Tom Thomas' spirits aren't lifted until all of the Fixie kids join in to create an extraordinary design.
Nolik is kicked out of class for repeatedly calling out on the subject of where tubes and pipes can be found. But once outside of class his keen eye saves the day when he spots a leaking tube in the laboratory.
It's a very hot day in the laboratory and the Fixies work together to unravel a messy tangle of cords so they can find a free outlet for Professor Eugenius to plug in his fan and cool off.
Late for school, Fire tries to show Simka and Nolik a "short cut" that ends up getting them lost. Fortunately Simka's Fixie Tablet has GPS to guide them to their destination.
Fire gets kicked out of class for screaming "fire" during a lesson on fire extinguishers. When he soon discovers a real fire in the lab, he has trouble convincing Grandpus and his schoolmates that this time it's for real.
Fire slows down the clocks in the apartment so Tom Thomas will have more time to play computer games. The idea works great for Tom Thomas, but not so well for his mom who is baking dinner in the oven.
Tom Thomas makes a video call to Simka and Nolik at the lab and gets to see their Fixie School. But soon he must do some quick thinking when his dad enters and wants to know who the little creatures on the screen are.
Tom Thomas is having no luck teaching Chewsocka how to count. Simka and Nolik figure out a way to get Chewsocka to do just what Tom Thomas wants after learning about reflexes in Fixie School.
Simka and Toola must escape from the oven after falling into a pie that's about to be baked. Believing they've been baked into the pie, Tom Thomas tries to find them by eating piece after piece without making his mom suspicious.
Chewsocka knows she could be a real service dog if only humans and Fixies could understand her. And soon she gets her chance to help when she discovers an outlet sparking.
When Professor Eugenius manages to lock himself out of the laboratory by forgetting both his key card and Elisa's inside, the Fixies have to figure out how to let him back in without Elisa discovering them.
Tom Thomas doesn't know how to get a bothersome bee out of the kitchen. Simka and Nolik get the bee safely outside without it stinging Tom Thomas, Chewsocka, or them.
Watching Professor Eugenius test out a new airbag, the Fixie kids learn about the importance of traffic safety. The demonstration also gives Grandpus an idea about how to keep the reckless Fire a bit safer.
Fire thinks burying batteries into the soil will give Toola's lemon seedling more energy to grow. The Fixies soon learn the dangers of putting batteries into the ground.
When Papus and Masiya are urgently called to the laboratory they become frantic, imagining all of the terrible things that may have happened to Simka or Nolik.
Tom Thomas, Simka and Nolik decide to put on a shadow play and Nolik wants to play the brave and tall hunter. Unfortunately he is too small for the part - until he learns how to change the size of his shadow.
When Professor Eugenius picks up signals with his new antenna he thinks he may have made contact with aliens, and not just Toola and Digit who are stuck inside the device.
When Tom Thomas accidentally drops his father's toolbox he needs the help of Simka and Nolik to get everything back into place before his father gets home.
Fire needs to learn how to tie knots in order to join Simka and Nolik's pirate crew. He gets completely carried away and starts tying knots in just about everything.
Tom Thomas tells the Fixies he has psychic powers that will enable him find where they hide a button while he's outside the room. What the Fixies don't know is that he's spying on them with a baby monitor.
When the trigger on his toy dart gun breaks, Tom Thomas' skills are put to the test drafting a technical drawing that Papus can use to make a new part.
Tom Thomas is thrilled when Simka and Nolik convert his smartphone into a Fixiphone until his dad borrows the device and finds some not explainable phone numbers on it.
Simka and Nolik's plans to go to the circus with Tom Thomas are cut short when his family gets stuck in the elevator. Helping Papus and Masiya with the repair, the Fixie kids become performers in their own circus.
The Fixie kids find it a real challenge to sneak past Elisa and get back to Professor Eugenius with a spare part without setting off the motion sensor that automatically opens the door to the laboratory.
