Season 1

Diamonds are the perfect present for mothers; they're just as perfect for creating an indestructible robot for Czar zar to rampage in. / Meet Ferro, the magnetic microbe menace, mega meanie and Microcosmos mischief-maker.

All the mad scientist Mito wants to be able to do is sing perfectly. So what if she has to kidnap the best singer in the microcosmos to do so. / Nanoboy gets a big ego after he defeats a giant worm all on his own. Now, without the help of his trusty Nanosquad, can he defeat 3?

Czar zar manages to build the smartest Nanobot around. Now can the Nanosquad beat it at chess? / An ancient protoplasm arises from his deep slumber and wrecks havoc on Asphalt City. Run, Nanosquad, run. It's Bogzilla!

Sweet little Kinase just wants to spend time with her superhero idol, Nanoboy. It's too bad he's too busy saving the microcosmos to have dinner with her. / The Nanosquad get old when Mito steals their youth from them, just so she be pretty forever.

Ferro has given up crime to start his very own TV show. It's so popular that people are robbing banks just to give him money. Time for the Nanosquad to give him the axe. / Commander Flag gets sucked up by a Mosquito and now the Nanosquad have to embark on a dangerous mission inside the belly of the beast.

The Nanosquad meets vampires and old Gothic. / After all their hard-work of Microcosmos saving, the Nanosquad deserve a break of fabulous Sedation island.

CJ's old viral ways catches up with her as Vigilante Germinator hunts her down. Nothing is going to stop him in his quest for justice, not even the Nanosquad. / Groovy brings a little party to the Microcosmos, and CJ is all caught up in the charm.

It's Microcosmos' Brainiest! Contestants stand to win up to 5 majillion microcredits if you get all your questions right. Czar Zar definitely will, since he kidnapped all of Tim's neurons. / Oscar's plant is under attack from oxygen hating bacteria. So it's up to the Nanosquad to bring down the greenhouse.

Yeehaa The Nanosquad go off into the wild west as Billy the Spit rides into town with his quick shot saliva. / It's goo-bar madness as everyone in the Microcosmos is going crazy for this new fangles goobar.

Isaac clumsiness gets the Nanosquad in trouble.Lucky for him, he can always fall back on being king of an island tribe. / Infra-sound, the latest in mind-control technology. All in the hands of Czar Zar as he plans, once again, to take over the microcosmos.

Gentle Giant Bog and Czar zar have become the bestest of friends. This isn't good news for the Nanosquad. / A sleepy little village calls in the Nanosquad to help them with a bandit problem. Nothing is what it seems in this homage to classic Zorro stories.

Czar zar wants to be the leader of FLEGM, but he's going to need a new style to fit in. How else is he going to get some but by stealing it. / The Germinator is looking for sidekicks, and no, the Nanosquad need not apply. Doesn't help that Lacto has escaped and is on a crime spree.

The Nanosquad get digitized into cyberspace as they chase down another form of virus. / Nanoboy and Czar zar are forced to work together when a scientific experiment gone wrong warps them way back to the past.

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The miners of the Plax Corporation are going missing. / Silence is golden. Unless you're the Doppler! There's a new villain in town and he's surfing sound waves to steal all of the money from Asphalt City.

In an effort to get more work done, Isaac clones himself and now Nanoboy and CJ have dozens of Isaacs to deal with. / Cloud City has some big clouds bullying other small cloud-lings when they grow big and heavy.

Smarty Bot has decided that his purpose in life is to free the nanobots from the Tyranny of the Microcosmos. / A series of catastrophes link together and cause a chain reaction, the Nanosquad have to leap to action before it turns to complete

Czar Zar's elasticity reversal ray gun has gone missing! / A microbe school bus driver loses control over his vehicle after it gets hit by a surge of static electricity!

What do you get when an egotistical pharaoh decides to build an amusement park in homage to himself? / Zombie chickens are after you! And what's worse than zombie chickens? Glamo-Rama, the washed up B-movie diva, that's what.

The mob takes over the super-highways of Tim's body. / A mysterious figure appears in the Microcosmos causing allergic reactions to Microbes wherever it goes.

It's time for some soccer action as team Nanosquad goes head to head with team Czar Zar to win the prestigious microcosmos cup. / How would you like to be a member of the Nanosquad for a day?

Brains BRAINS!!!. It's a viral infection of the Microcosmos and everyone is infected - including Isaac and Nanoboy! / Lacto has managed to find his way into Professor Stein's intestinal system and is causing serious tummy trouble.

The inhabitants of the Rugforest have been under a series of attacks by the wild Sheeba Amoeba and her tribe of vicious dust-mites. / When the Bacteria Boyz move into Oscar's science tutor's mouth, the result is horrible.

Get some Mamazar's "I can't believe it's not soap" today? Guaranteed to clean, clead, CLEAN the pesky Nanosquad. / Harold and Galaktor are on a mission - to collect the super-powers of all of the Microcosmos' superheroes.

4 seemingly harmless elements can cause major mayhem when they are brought together! The Nanosquad must split up for this mission, to stop Vulco from uniting the 3 of them./What kid hasn't skinned their knee?

Summer time is tanning time! Be sure to apply your sunscreen or else you will end up with badly burned skin like Pablo. / What do poachers want with Isaac? Is he really an endangered species?