It’s Ella’s mom’s birthday! Dad has bought the gift and Tilly has made the card, but Ella wants to get her mom a present just from her! Ella heads out to find something spectacular and runs into her friends Slippy and Madhu.

The gang is excited to have all kinds of fun when Maggie dashes each one of their plans with her less-than-fun information. Slippy heads off in a slump but finds an old ship trapped in ice on Triton. He calls Ella and Madhu to come explore!

Priya has arrived from Earth to complete a school project about Mars. Priya is unfamiliar with the planet and a bit nervous about its huge dust storms. Ella, Slippy and Madhu convince her she needs to visit Mars to get the best video for her project.

Madhu has special presents for Ella and Slippy, to celebrate the anniversary of the day they met.But when Ella and Slippy say they can’t hang out, Madhu is sent off with only Maggie for company.

Slippy has heard a rumour that the abandoned outpost the gang plans to visit is haunted so he brings his ghost detector goggles, just in case! Ella assures him that there are no such things as ghosts, but then odd things begin to happen

Ella and Slippy have been practicing their rock-climbing skills, so that they can tackle the recently formed, huge crater on Saturn’s moon, Enceladus. Ella, however, prefers relying on her space boots rather than actually practicing.

One little rock can cause a chain reaction by hitting bigger and bigger pieces. Ella inadvertently sends a rock on a collision course for Saturn’s moon, Prometheus. That’s where Ella’s dad has gone to work on a stalled vehicle.

When Glitch’s arm shorts out, Ella’s dad has the right tools to fix him. While he’s at it, Dad shows off his latest creation, a Super Towing Arm. Slippy is impressed and Glitch is more than happy to try it on for size!

Ella is enlisted to pet sit Buttons, a friend’s dog, on the very day she has to finish a school project about Venus. She decides to take on both responsibilities at once.

Slippy’s Dad insists he get rid of all his inventions to free up some space. Slippy can’t bear to, so decides to store them on the dark side of Mercury.

On Sedna, Ella and her friends discover the space probe Voyager 1. Ella takes the Golden Record from the probe and takes it to Mom who reveals that Ella’s greatest grandfather recorded a greeting on it!

Human Day is Ella’s favourite day of the year and she invites Madhu to join her family for dinner. Madhu wants to make a good impression and wonders how to prepare. With Maggie’s help, Madhu learns about the customs of different cultures.

While checking out a rogue planet, Ella, Slippy and Madhu crash onto its surface. When the heat from underground causes the planet’s icy crust to burst open, they all tumble down into the darkness and become separated.

Ella feels terrible when she accidentally ruins some of her mother’s old photographs. She convinces her family to recreate the scenes in the old pictures into new ones! But things don’t go quite as planned; a lot has changed in space over the years.

Ella and the gang are going camping! But as they approach their camp site, Maggie alerts them that a giant solar flare is heading their way. They must turn off all their electronics until the storm subsides.

Ella is very impressed by Angelie, her mom’s new field assistant. When the blue star Mom has discovered seems to have disappeared, Angelie offers to go check it out. Ella jumps at the chance to go with her.

Ella and her friends play a star-riddle game that is a tradition in Slippy’s family. In order to beat Slippy’s cousins, they need to find some super-giant stars!

Slippy’s cousin Gem wants time apart from her twin brother I.Lo but he doesn’t want to hear it. When no one wants to investigate the super puff planet they discovered, Gem races off on her own, despite the high temperatures and strong winds.

Tilly is dressed as her alter-ego, SuperTilly. When her dad asks her if she can send him his toolbox, it’s SuperTilly to the rescue! Tilly accidentally sends the tool box to the wrong moon, and refuses Ella’s help.

Slippy promised his uncle to water his plants while he is away. When he finally heads to the greenhouse, he discovers that the watering system he built is broken. The plants are not doing well. The gang resorts to watering the plants with a hose!

When Glitch's compartment empties out and a huge amount of junk floats out, Ella suggests that Slippy get rid of it. They all head to Vesta. Madhu finds something that looks like a robot so the gang sets out to find the other pieces.

Ella, Tilly, Slippy and Madhu are playing a game on the moon when it starts to rumble. The ground cracks open and they fall into what they discover is a large network of tunnels underground.

When Angelie breaks Slippy's Jupiter gliding record, he's equally upset and fascinated by her surfboard. The two agree on a rematch and set out to work on their vehicles. They both ask Ella for help.

Ella finds her Nanny's old Hide and Peek device and hopes to beat Slippy's record for Hide and Seek! Gem and I.Lo are playing too. Slippy decides to make things more interesting by siphoning fuel from the Hide and Peek.

When Glitch's compartment empties out and a huge amount of junk floats out, Ella suggests that Slippy get rid of it. They all head to Vesta. Madhu finds something that looks like a robot so the gang sets out to find the other pieces.

It's Priya's birthday so the gang is looking for something special as a gift for her. Ella suggests a birthday star, which is a star that is the same light years away as your age.

Ella stretches the truth a bit when she tells Angelie she can comet surf. She decides to try but finds it's a lot harder than it looks. Slippy adds rockets to an asteroid so Ella can practice on that instead.

Slippy needs iron to fix his spaceracer. Ella tows him to a metal asteroid where Glitch is instructed to cut off a small piece. But when Ella distracts him, he accidentally cuts the asteroid into two large pieces! Ella feels responsible

Ella has her best idea yet for a fun day. They will visit a nebula for each member of the family! Up first is Bernard 68, but it is very dark and frightens Tilly. When Dad's truck breaks down, they head to the Boomerang nebula.

The gang is practicing to play Saturn Dance with Priya when she calls to tell them she is sick. She won't be able to come. Ella is very disappointed and wonders how they can cheer up Priya.

When Slippy, Madhu and Ella head out to see a SuperNova, they arrive too late because of Slippy's endless preparations. The gang quickly decide to go zip-lining on Ganymede instead.

Ella and Slippy are practicing Pluto Jump Ride when Tilly begs to go too. Ella tells her it's too dangerous and gives her a practice jump stick before she leaves. Madhu arrives to play and finds Tilly alone.

Ella, Slippy and Madhu are spiral space diving when Ella explains what inspired the idea. It's a huge colourful spiral that Maggie is not able to identify. As she tries, she begins to glitch.

The Ryder family completes a drill in the event of a Starquake. Shields are deployed around Home and Dad's museum on the moon. The drill is a success but the shield on the moon is stuck open.

When Ella heads out to collect some space materials for the Clubhouse, she borrows Slippy’s luckiest good luck charm, Mooncake. But when Ella arrives at a black hole, Mooncake is bumped off her Moonscooter into the strong gravity of the black hole.

The gang is playing at the Clubhouse when a silicon rocket goes missing. Slippy’s sure the mysterious Alien Silicon Jellyfish must have taken it! Ella is not so convinced...

Ella sets out to find the missing wheel of the Lunokhod 1, a Robotic Moon Rover featured in Dad’s new Lunar Exploration Museum. Dad is thrilled at the find and lets Ella pop the wheel on the Rover.

After an exciting race, Ella’s Dad gives her a mysterious Treasure Map of their solar system. It was Slippy’s dad who had given it to him when they were boys. They quickly figure out how to read the map and set off.

Ella’s family is packing for their Annual Flare Star Day when Madhu asks for Ella’s help. It’s urgent! Madhu’s rock friend Zobu needs her! Ella accepts but she must be quick. Ella rescues Zobu in no time when Slippy calls in on a combubble.

Ella and Tilly race their cars on the ceiling at H.O.M.E. Station when a burned eggplant sends Mom out to get some more. The girls are left alone to play. They unwittingly crash their cars and smash Mom’s crystal.

Slippy is super excited to try out his new Rocket Boosters. So excited in fact, that he overloads them and crash lands on Jupiter’s moon with Madhu. Slippy knows he can fix his racer so lets Madhu head back to Ella’s.

The gang is playing tag when Madhu is chased by a space probe! It turns out it is from Madwhy, Madhu’s sibling. They send each other gifts. Now Madhu wants something Super-Amazing-Awesome-and-Special to send back.

Slippy takes everyone on a spectacular constellation safari with his space sparkler! The Gemini Twins aren’t impressed but accept to take the sparkler for a ride. When the twins don’t listen to Slippy and go too far, they get lost in the Crab Nebula.

When Space Junk smashes into their Clubhouse, Ella and Slippy set off to fix the problem. While Ella wants to be rid of the junk by pushing it into a planet’s atmosphere, Slippy’s determined to reuse or at least recycle it.

The gang is playing tag the Meteoroid when Glitch fails to follow Slippy’s instruction. He soon realises it’s because Glitch saw the comet he’s been tracking for months! Slippy is excited – he gets to tag a comet! And that means he can name it.

Ella and Slippy are perfecting their triple corkscrews when Priya, Ella’s best friend from Earth, surprises her with a visit. Priya performs a perfect triple corkscrew to everyone’s amazement. Ella is frustrated that she still can’t seem to nail it.

While playing ice hockey on Europa, an ice-covered moon of Jupiter, a stray puck hits Ella’s wrist and injures Maggie. Dad is sure he can fix her but will need palladium so he can fuse her fried circuits back together before she loses her memory.

Slippy wants to watch an eclipse so badly that he makes special safety goggles for himself and his friends. But Ella has a different plan. When she insists on going to watch a binary star supernova, Slippy opts out and heads off on his own.

Ella always looks forward to Momella Day. And this Momella day promises to be the most interstellar yet, because they are going to see a small but powerful Red Dwarf star!

Ella’s mom is a hall of fame Enceladus 500 race champion, and Ella wants to be just like her! She plans to skate, scooter race and geyser jump her way to a championship trophy!

After hurting her leg, Ella has to take it easy for an entire day. Does she have the patience to sit and rest for that long? When she quickly runs out of activities at home, Ella’s dad offers to take her along on one of his towing operations

Ella is excited to get her own room but Tilly is not as thrilled. She asks Slippy if he can make her a time machine to slow down time so tomorrow never comes. Slippy says the only place time shows down is around black holes.