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During a visit to Sodium’s tasty café, Hydrogen follows her belly and ends up on a very strange adventure.

Sulfur & Phosphorus decide to try their hand at bowling, but discover it’s not quite as easy as it looks.

Oxygen and the gang bite off more than they can chew when they offer to carry Helium’s bag up some steps.

Sulfur & Phosphorus attempt to bend the rules at a banana eating competition, but things get slightly out of hand.

It’s Lead’s birthday and everyone has one of Helium’sprecious balloons, but all Lead really wants is a go on the see saw.

Oxygen & Carbon are having fun playing video games at Sulfur’s, until one of the joystick’s stops working.

Arsenic decides to play a trick on Sulfur & Phosphorus during their fishing trip, but his pesky plan soon starts to backfire.

Helium ropes in Nitrogen and Oxygen to transform their wild garden into a perfect croquet lawn, but pesky Arsenic’s got other ideas.

Carbon tries to take a shortcut when helping Oxygen prepare for her teddy bears picnic.

While tending to his prized pumpkin plant, Nitrogen accidentally causes chaos for the Atoms of Atom Town.

Oxygen & Hydrogen try to build the world’s biggest snowman, but a runaway snowball soon threatens the whole town.

Sulfur & Phosphorus become unlikely helpers when Lithium tries to put on a circus act, but is she good enough and can she keep her nerve?

Helium's evening at the theatre, starring Gold and Silver, is nearly ruined by Oxygen's hiccups, unless the Atoms can come up with a quick cure.

Oxygen offers to teach Gold and Silver how to ride their new bike. But they are not ideal students and are unwilling to work in tandem.

Oxygen & Carbon take on jobs as chefs in Sodium’s restaurant, but their over-enthusiasm to impress causes mayhem and risks Helium getting her special order.

Sulfur & Phosphorus desperately try to sneak into Oxygen’s party, not knowing that the party is actually a surprise party for them.

The Heavy Metal Band is searching for a new sound, much to Helium’s annoyance. But little do they know she might have exactly what they need.

Sulfur and Phosphorus stand in when they accidentally destroy Nitrogen’s scarecrow. They soon find that a local crow is more than a match for them.

Oxygen and the gang get creative as they attempt to paint an artistic mural on the wall of Atom Town, and they have LOTS of ideas!

Helium is on her way home and really needs to pee. But other Atoms keep taking the elevator to other floors, much to her frustration.

Gold orders a chocolate statue of herself to impress Silver at her party, but Oxygen finds it difficult transporting it in the random Atom Town weather.

While the other Atoms struggle to stay awake during a meteor shower, Hydrogen stargazes with Park Ranger Iron and learns some mind-blowing secrets of the universe.

Oxygen, Nitrogen & Carbon attempt to pitch a tent but when the incomprehensible instructions are destroyed, they are forced to improvise.

Despite being last picked for the buckyball team, Hydrogen uses her brain and tiny size to lead the way as they take on the infamous buckybeast.

Carbon asks for Titanium's help opening a tricky pickle jar, but things soon escalate as Titanium clearly doesn't know his own strength.