The special bond that develops between plus-sized inflatable robot Baymax, and prodigy Hiro Hamada, who team up with a group of friends to form a band of high-tech heroes.
Set in the fictional city of San Fransokyo, 14-year-old tech genius Hiro begins school as the new prodigy at San Fransokyo Institute of Technology and sets off to rebuild Baymax. However, his overconfidence and penchant for taking shortcuts leads him and the newly minted Big Hero 6 team – Wasabi, Honey Lemon, Go Go and Fred – into trouble.
Fred is determined to create an alter ego for Baymax! Should Bayxmax’s alter ego be a cowboy? A fireman? A clown? A sumo wrestler? More importantly, will any of Fred’s ridiculous ideas stick?!
Go Go attempts to teach Baymax how to roller-skate, but he can’t seem to slow down! Can she keep him from getting into trouble?!
Baymax wants to learn yoga poses, but he has a hard time mastering it! Can Wasabi teach him without getting too stressed out?!
Hiro boosts Baymax’s battery, which causes Baymax to go into overdrive! Oh no.
While Aunt Cass is gone, Baymax tries to keep Mochi out of trouble, but he quickly learns that babysitting is harder than it looks!
Honey Lemon shows Baymax how to play tennis, but Baymax can’t move quickly enough to hit the ball over the net! Can she figure out a way for him to play?
As Hiro tries to find a way to connect to classmate Karmi, Go Go and Fred dive deep into comic book mythology to defeat High Voltage, a mother-daughter supervillain duo.
A purse thief gets more than he bargained for when he steals Honey Lemon's chem-lab purse and it turns him into a monster.
When supervillain Baron Von Steamer crashes Fred's Bro-Tillion, Big Hero 6 spring into action.
When Aunt Cass stumbles into an underground cooking competition, she thrives, and becomes addicted to the excitement.
Hiro, Fred, and Baymax follow GoGo into the mysterious Muirahara Woods where they get lost and everything electronic strangely fails including Baymax.
Hiro becomes demoralized when his latest school project fails spectacularly; the team must take on the incompetent villain, Globby.
After Aunt Cass nearly discovers Hiro's secret membership in the Big Hero 6, Hiro tries to set her up with someone to distract her.
Although he is obviously ill, Hiro refuses to listen to his team-mates and Baymax and only watch from afar as they fight the mercenary team Mad Jacks.
Crazy game show host Mr. Sparkles threatens to hurt Hiro's cat Mochi to force Go Go to join a game. But she is very afraid of public appearances.
Wasabi's need for order clashes with Hiro's chaotic work style when they collaborate on a school project.
Hiro becomes frustrated when he's deemed too young to attend a science workshop hosted by SFIT's most famous alumni, Dr. Trevor Trengrove.
Hiro decides to upgrade himself with super strength, but his new tech backfires and causes problems at home and at school.
Honey Lemon secretly takes art classes at SFIT's rival, SFAI, and soon finds herself caught in the middle of both schools' annual Rivalry Week tradition of pranking each other.
Karmi starts posting fan fiction about Big Hero 6, depicting Hiro as her boyfriend.
Hiro invents a tiny robot, Mini-Max, to supervise and be a sidekick to Fred while the rest of the team is in class.
Richardson Mole blackmails his way onto the team after Fred accidentally reveals their secret identities.
When a monster wreaks havoc in San Fransokyo, Big Hero 6 must go on a real-life monster hunt.
Hiro and the others plan the ultimate birthday surprise for Wasabi by recovering his car from the bottom of the bay, but Baron Von Steamer ruins the celebration.
Hiro is drawn back into the world of bot-fighting, where he meets Trina, a young bot-fighter.
After Big Hero 6 goes to a haunted house, Hiro keeps seeing his late brother, Tadashi, around the city.
Obake unleashes his plan on San Fransokyo. This is the teams biggest challenge to date.
As Hiro tries to remove Baymax's nasty computer virus, a swarm of bed bugs chase Baymax through his nightmare!
When Baymax counts too many sheep, a Junk Data Protocol begins deleting his new fluffy friends! Oh no.
Baymax's personality gets split into multiple versions of himself!
Go Go helps Fred make popcorn for movie night.
Fred babysits Mochi who ends up causing trouble for him and Wasabi in SFIT labs.
The gang try to get Mochi out of a woodpecker owned tree.
The gang perform the Noodle Burger song with Noodle Burger Boy.
Go Go and the gang try to get Honey Lemon to stop snoring.
Go Go mistakes one of Honey Lemon's new mini chem-balls for gum and blows up like a balloon.
Karmi chases Captain Cutie around San Fransokyo to give him a love letter.
When Noodle Burger Boy prepares his ultimate move, the Big Hero 6 try to prepare theirs.
A mischievous Mochi keeps pushing plants out the window for Baymax to catch! To Baymax's delight, the flowers attract a swarm of butterflies!
Baymax tries to help Mochi retrieve his favorite toy!
Oh no! Hiro's room is an absolute mess! Baymax and Mochi work together as a team to make it spotless!
Hiro’s jealousy of Karmi’s internship at Sycorax leads him to intern at Krei Tech.
Professor Granville becomes increasingly pushy with her suggestions for Big Hero 6 as she helps them try to figure out a mysterious series of food-related burglaries.
Hiro and Fred enlist Karmi to find out what Liv Amara is doing to cure Orso Knox, the man who was mysteriously turned into a monster.
Aunt Cass sets Hiro up with 14-year-old Megan which leads him to wonder if he is missing out on being a normal kid. Big Hero 6 must deal with an upgraded High Voltage.
Honey Lemon sets out to cure Globby and make him human again. However, Big Hero 6 must now face a new different evil glob-like villain.
When Honey Lemon finds out she can return to her dorm, Go Go realizes she doesn’t want Honey Lemon to move out. Big Hero 6 look to stop a secret underground racing league.
Hiro and Go Go accompany Krei to the woods to deal with Nedd Ludd, however they run into the monster of legend, the Hibagon, along the way!
When mysterious but adorable creatures called Mayoi suddenly appear in San Fransokyo, Hiro is convinced that they're part of some nefarious plot by Liv Amara.
Big Hero 6 attempt to thwart a bank robbery and are defeated by Supersonic Sue, a old school roller-skating villain.
Upon discovering Baymax's inherent abilities to detect if a person is lying, Hiro attempts to use Baymax to uncover proof of Liv's evil doing.
Hiro is forced to write a story for his class and decides to write about Big Hero 6. Strange versions of Noodle Burger Boy attack the team.
Karmi and Hiro team up to help treat someone overrun with genetically engineered parasites. Big Hero 6 must fight a city being attacked by monsters.
Big Hero 6 must continue to fight off a city overrun with monsters as Liv’s plot comes to its dramatic climax.
Fred’s bad luck threatens his safety. Megan tells Hiro that she’s trying to uncover the true identities of Big Hero 6 for her school’s newspaper.
Intent on becoming the toughest fighter in San Fransokyo, professional mech-wrestler El Fuego decides he must beat the strongest challenger he can find: Baymax.
Nega-Globby begins to take control of Globby’s body to cause chaos around the city, turning Globby from an adored hero to a wanted criminal overnight.
Now fugitives, Big Hero 6 lays low as the SFPD searches for them. A new villain named Hardlight shows up hoping to challenge Big Hero 6 to a real-life video game duel.
When Hiro finds a wrapped present in the closet, he assumes it’s from Aunt Cass and takes it in order to figure out what it is. However, after a mix-up, the present becomes lost and Hiro enlists the Big Hero 6 team to track it down.
Momakase blackmails Hiro into helping her steal a mysterious item from Yama’s safe, threatening to tell Chief Cruz Big Hero 6’s secret identities if he doesn’t help her.
Circus acrobat and physicist Sirque steals a secret project from Krei and uses the technology to commit thefts all over the city.
Fred’s invisibility function on his suit glitches during patrol.
A new villain calling himself Major Blast appears in the city and targets Fred; the other members of Big Hero 6 try to figure out who is behind the Major Blast mask.
Supersonic Stu busts his grandmother, Supersonic Sue, out of prison; at school, Professor Granville asks Wasabi, who fears public speaking, to sub for an absent teaching assistant.
Chief Cruz and the police get the upper hand in their battle with both villains and Big Hero 6 when they begin using Buddy Guardians, powerful new robots produced by Krei Tech.
When Fred accidentally mixes Baymax's memory of Mochi with his favorite Kaiju movie, he creates a giant Mochi monster that attacks San Fransokyo.
When a data backup machine splits Fred into a hundred tiny clones of himself, Baymax must smoosh the tiny Freds back together.
Fred tries to contain an adorable yet destructive glitch of his own creation that causes havoc in Baymax's head!
Hiro and a short-handed Big Hero 6 team attempt to stop Noodle Burger Boy and his new family.
Big Hero 6 responds to Richardson Mole’s every whim when he is made mayor for the day.
Hiro enlists the help of the team when Granville’s three dogs go missing while under his watch.
Hiro switches Baymax and Mini-Max's chips so that Baymax, using Mini-Max's body, can fit inside a tiny space and offer Mochi medical assistance.
A low-charged Baymax and Mini Max have to join forces with Noodle Boy to save Big Hero 6!
When Krei wants to sell the Mayor an automated fleet of shuttle vehicles, Honey Lemon suggests giving the shuttles a friendly face and an upbeat personality.
Hardlight crashes Karmi's autograph session for her new chibi series.
Fred is attacked by mechanical cobras, however their target is a former spy codename: Mongoose!
Fred meets the girl of his dreams, only to be rejected by her!
4 2 Sing, a famous boy band, decides to be crime fighters and challenge Big Hero 6 to a superhero-off.
Go Go reluctantly goes undercover as the co-host of Wendy Wower's television show.
Globby and Honey Lemon feel guilty about trapping Nega-Globby in the Glop-Vac.
When Basemax opens a spam email, she gets infected with a virus.
In order to recruit child prodigy Rishi Patel, Professor Granville enlists Hiro to give him a tour of SFIT.
Krei goes missing in the old Sycorax building!
When Big Hero 6 find Mr. Sparkles working at the Pizza-Party-Torium, he tells them he's decided to leave the world of crime behind.
Noodle Burger Boy and the mascots abduct Fred.
Krei enlists Big Hero 6 to launch his new karaoke machine.
Hiro sees an opportunity to defeat the mascots when they decide to add a member to their family.
