Runaway ShuttleMiles and M.E.R.C. rescue a trapped pilot before his ship crashes into Jupiter's fiery moon, Io.
Surfin the Whirlpool
E2
Surfin the WhirlpoolOn a father/son surf trip, Miles and Leo must work together to escape the Zuma Whirlpool.
Ocean in Motion
E3
Ocean in MotionMiles and his family must figure out why a probe stationed on a dry planet has sustained water damage.
Explorer Exchange
E4
Explorer ExchangeThe Callisto family is visited by alien Blodger Blopp as part of a Cosmic Explorers exchange program.
Game On
E5
Game OnWhen the Callisto family is captured by an alien queen, Miles must rely on his simulated gaming skills to save them.
How I Saved My Summer Vacation
E6
How I Saved My Summer VacationWhile vacationing on the dry planet of Alarbus, Miles and Loretta uncover an ancient secret.
Journey to the Frozen Planet
E7
Journey to the Frozen PlanetDuring a mission on an ice-covered planet, Miles must save Loretta when she is swept down a river towards a waterfall.
Attack of the Flickorax
E8
Attack of the FlickoraxWhen the lights go out on the planet Calpurnia, Miles and Loretta must protect their ship from light-eating Flickorax aliens.
Catch That IOTA!
E9
Catch That IOTA!Miles' attempt to fix Leo's latest gadget sends a diplomatic dinner into complete chaos.
Mighty Merc
E10
Mighty MercMerc worries that his place with the Callisto family is threatened when they try out a new robot named Axel.
Who Stole the Stelloshpere?
E11
Who Stole the Stelloshpere?When space thief Gadfly Garnett sneaks onboard the Stellosphere and blasts away with Miles and M.E.R.C. still inside, Miles' UNCLE Joe, captain of the SpaceGuard, comes to the rescue.
Rock N' Roll
E12
Rock N' RollWhen a moonquake traps the Callistos behind a rockslide, Miles must use his strength-enhancing Exo-Flex suit to save them.
Happy Captain's Day
E13
Happy Captain's DayMiles, Loretta and Leo try to give Captain Phoebe a great Captain's Day by embarking on a difficult space task.
Planet of the Plants
E14
Planet of the PlantsDuring a mission to Antheia, a planet completely covered with orange plants, the Callistos discover something stranger than the plants.
Ride of the Quarkons
E15
Ride of the QuarkonsThe Callistos encounter a pod of Quarkons blocking the Photon Superhighway.
Downsized
E16
DownsizedWhen the Callisto family is accidently shrunken down by the Tomorrowland Mail-alien, the tiny family must work together to help Merc save an off-course starship.
To the Goldilocks Zone
E17
To the Goldilocks ZoneMiles helps scout out the perfect planet for his Earth friend Haruna to live on.
Hiccup in the Plan
E18
Hiccup in the PlanThe Callistos must figure out how to escape when a giant Sporjot alien swallows the Stellosphere.
On Spaceguard
E19
On SpaceguardMiles goes on a ride-along with his uncle, Captain Joe of the SpaceGuard, and finds himself in pursuit of space villain Gadfly Garnett.
Spaceship Invader
E20
Spaceship InvaderMiles brings home a fuzzy rock to add to his collection and soon learns it is actually an alien life form.
The Great Blastboard Chase
E21
The Great Blastboard ChaseMiles borrows Leo's Blastboard without permission and discovers an alien dinosaur.
Adventures in Robot-Pet Sitting
E22
Adventures in Robot-Pet SittingOn a mission to transport robo-animals to their new families, the Callistos hit a road block on the Tethosphere.
Unplugged
E23
UnpluggedWhen the StarJetter crash lands on an uninhabited planet, the Callistos must survive without the help of technology.
Junked
E24
JunkedThe Callistos must track down the culprit responsible for dumping trash into the orbit around the planet Alarbus.
Mama Merc
E25
Mama MercMiles must help his family when a giant winged creature mistakes the Star Jetter for its egg.
Space Race
E26
Space RaceMiles learns a lesson in sportsmanship when he enters the Tomorrowland Pilot of the Future race.
The Neptune Adventure
E27
The Neptune AdventureDuring a field trip to Neptune, a malfunction causes the research station to flip over and sink.
Eye to Eye
E28
Eye to EyeThe Callistos encounter Spectryx, an alien who can only see in the infrared spectrum.
Yuri's Night
E29
Yuri's NightOn Yuri's Night, the Callistos are tasked with bringing alien musician Bootjet Groovestar to the Tethoscape.
I, Stella
E30
I, StellaWhen Stella's system experiences a technical malfunction, Miles must figure out a way to fix it.
Frozen Food
E31
Frozen FoodWhen the Callistos' have dinner at alien chef Lysander Floovox's new restaurant, their meal is interrupted by Gadfly Garnett.
Later Multivator
E32
Later MultivatorMiles attempts to follow in his dad's footsteps by modifying the Stellosphere's multivator.
Lunar New Year
E33
Lunar New YearMiles' grandparents join the Callistos to celebrate the Luna New Year.
The Hoverbike Diaries
E34
The Hoverbike DiariesMiles is invited to go on his first hoverbike road trip with Leo and Captain Joe
The Search for Skellig Ro
E35
The Search for Skellig RoMiles and Loretta meet Master Skellig Ro, a legendary guru in the martial art Naxos
Endangered Species
E36
Endangered SpeciesThe Callistos must find a way to save a group of creatures that fight against them.
Blasteroid
E37
BlasteroidThe Callistos discover a tiny race of creatures living inside an oncoming asteroid.
Magnetic Merc
E38
Magnetic MercM.E.R.C. becomes magnetized after getting stuck in an interstellar dust cloud.
A Growing Problem
E39
A Growing ProblemThe Callistos must use robots to save a planet from an invasive species of moss.
The Tardigrade Escapade
E40
The Tardigrade EscapadeThe Callistos launch a search and rescue mission when a massive tardigrade escapes Dr. Rubicon's lab and gets lost in space.
Miles vs. The Volcano
E41
Miles vs. The VolcanoThe Callistos search for Phoebe's missing sister Frida and must rescue her before Mars' volcano erupts.
Scavengers of Mars
E42
Scavengers of MarsA scavenger hunt turns into a rescue mission when Miles' friend disappears.
Unexpected Ally
E43
Unexpected AllyGadfly helps the Callistos locate stolen space equipment.
Skyrise
E44
SkyriseMiles and his friends must act quickly when a new space elevator malfunctions.
Ghost Moon
E45
Ghost Moonthe Callistos are sent to investigate eerie sightings on a dark moon.
Stormy Night in a Dark Nebula
E46
Stormy Night in a Dark NebulaThe Callistos enter a dark nebula and find some spooky inhabitants.
Team Exo-Flex
E47
Team Exo-FlexAn Exo-Flex training session becomes complicated for Miles and his friends.
Dino World
E48
Dino WorldThe Callistos search for the missing Professor Rubicon, who was last seen researching ancient dinosaur fossils.
The Pluto Rescue
E49
The Pluto RescueMiles, Loretta and Auntie Frida's trip to Pluto coincides with Commander S'Leet's plan to take over a planet.
The Taking of the Solar Express
E50
The Taking of the Solar ExpressMiles and Haruna must stop Gadfly from a galactic heist of a new solar-powered space train.
The Space Trader
E51
The Space TraderM.E.R.C. volunteers to help catch the thief responsible for a slew of recent robot thefts.
The Quantum Cup
E52
The Quantum CupQueen Gemma's family gets diverted on their way to compete against the Callistos in the Quantum Cup.
The Legend of the Sandelion
E53
The Legend of the SandelionThe Callistos travel to the planet of Sandrosk to save a colony from a sandstorm.
The Mystery of Atlantix
E54
The Mystery of AtlantixThe Callistos are sent to Pipp's underwater hometown of Atlantix, but their mission is interrupted.
The Hitchhiker's Ride Through the Galaxy
E55
The Hitchhiker's Ride Through the GalaxyMayhem ensues when the Callistos bring aboard a group of mischievous critters.
Escape From the Tethoscape
E56
Escape From the TethoscapeWhen the Stellosphere is out of commission, Miles and Loretta call on their friends for help.
The Discovery Expedition
E57
The Discovery ExpeditionThe Callistos' Christmas trip is interrupted by a villain named S'leet who causes it to snow inside the Tethoscape!
Snow Globe
E58
Snow GlobeLoretta discovers a hidden planet full of snow and ice.
Galactech: Secrets of the Black Hole
E59
Galactech: Secrets of the Black HoleWhen a black hole reveals a clue left by an ancient race, the Callistos discover a secret galaxy containing the key to saving their own.
Cast of Season 1
Fiona BishopLoretta Castillo (Voice)
Dee Bradley BakerM.E.R.C. / Misc. (Voice)
Tom KennyLeo Callisto / Misc. (Voice)
Olivia MunnPhoebe Callisto (Voice)
Grey DeLisleStella / Queen Gemma / Misc. (voice)
Diedrich BaderAdmiral Crick / Misc. (Voice)
Danny JacobsAdmiral Watson / Misc. (Voice)
Cullen McCarthyMiles Callisto (Voice)
Take Plex everywhere
Watch free anytime, anywhere, on almost any device.
