Hiro thinks Baymax is lost forever, until he finds the chip that Tadashi designed to create Baymax. Hiro immediately gets to work rebuilding his friend.

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.

Go Go and Honey Lemon quickly clash when they become roommates. Meanwhile, when a thief steals Honey Lemon’s chem-lab purse, it accidentally turns him into a monster.

When supervillain Baron Von Steamer crashes Fred’s Bro-Tillion, the Big Hero 6 team springs 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.

Honey Lemon takes art classes at a rival school.

Karmi posts Big Hero 6 fan fiction, embarrassing Hiro.

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 into Big Hero 6.

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.

To try to prove Yama is behind a mysterious crime spree, perpetrated by tiny bots, Hiro is drawn back into the illegal world of bot-fighting.

After the gang goes to a spooky haunted house, Hiro keeps seeing Tadashi around the city and ultimately finds himself face to face with his brother.

Big Hero 6 face their greatest challenge as Obake unleashes his plan on San Fransokyo.

Hiro’s jealousy of Karmi’s internship at Sycorax leads him to intern at Krei Tech.

Professor Granville becomes increasingly pushy with Big Hero 6 as she helps them figure out a mysterious series of food-related burglaries.

Hiro and Fred enlist Karmi to find out what happened to Orso Knox, the man who was mysteriously turned into a monster.

When Aunt Cass sets Hiro up on a date, he begins to wonder if he’s missing out on being a regular kid.

Honey Lemon sets out to make Globby human again.

Big Hero 6 must stop a secret underground racing league.

When Hiro and Go Go accompany Krei to the woods to deal with Nedd Ludd, they run into The Hibagon, a legendary monster.

Mayoi, mysterious yet adorable creatures, begin to appear in San Fransokyo.

Big Hero 6 attempts to thwart a bank robbery and encounter Supersonic Sue, an old school roller skating villain.

Upon discovering Baymax’s ability to detect if a person is lying, Hiro attempts to use him to uncover proof of deceit.

Karmi and Hiro team up to help treat someone with genetically engineered parasites.

Karmi and Hiro team up to help treat someone with genetically engineered parasites.

Big Hero 6 must continue to fight off a city overrun with monsters.

When Fred runs into a string of bad luck, Megan reveals to Hiro that she’s trying to uncover the true identities of Big Hero 6 for her school’s newspaper.

Professional mech-wrestler El Fuego is intent on becoming the toughest fighter in San Fransokyo and decides he must beat the strongest challenger he can find, Baymax.

Nega-Globby takes control of Globby’s body to cause chaos around the city.

Evil villain Hardlight challenges the Big Hero 6 team 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 her family's knives from Yama's safe.

Megan confronts Hiro about being a vigilante and threatens to tell Chief Cruz the truth.

Fred's invisibility function on his suit glitches during patrol.

A new villain, Major Blast, appears in the city and targets Fred.

Supersonic Stu busts his grandmother, Supersonic Sue, out of prison.

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.

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’s chip with Mini-Max’s so that Baymax can rescue Mochi.

A low-charged Baymax and Mini-Max join forces with Noodle Burger 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.

After Fred is attacked by mechanical cobras, he learns that they were actually sent after Heathcliff.

Fred meets the girl of his dreams, Olivia, only to be rejected by her for reasons he doesn’t understand.

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.

When Krei is lost in the old Sycorax building, the heroes must search the abandoned monster factory to find him.

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 invents a karaoke machine.

Hiro plans to defeat The Mascots once and for all.