archytele The Vault
Season guide

Big Hero 6 The Series: Season 3

19 episodes Premiered Sep 21, 2020 Updated Sep 27, 2026
Previously on Big Hero 6 The Series

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Picks up essential narrative continuity directly following the events of Big Hero 6 The Series Season 2.
  • ⚡ Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • ⚡ Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • ⚡ Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
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Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

16%
84%
Mytharc (3): Crucial lore & season climaxes
Core (16): Character development & subplots
Side Quest (0): Standalone / filler
S3·E2 Core

Mayor for a Day

Sep 28, 2020 · 11 min

Big Hero 6 responds to Richardson Mole’s every whim when he is made mayor for the day.

S3·E3 Core

The Dog Craze of Summer

Sep 28, 2020 · 11 min

Hiro enlists the help of the team when Granville’s three dogs go missing while under his watch.

S3·E4 Core

Trading Chips

Oct 5, 2020 · 11 min

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

S3·E5 Core

Mini Noodle Burger Max

Oct 5, 2020 · 11 min

A low-charged Baymax and Mini-Max join forces with Noodle Burger Boy to save Big Hero 6.

S3·E6 Core

A Friendly Face

Oct 12, 2020 · 11 min

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.

S3·E7 Core

Big Chibi 6

Oct 12, 2020 · 11 min

Hardlight crashes Karmi’s autograph session.

S3·E8 Core

Cobra and Mongoose

Oct 26, 2020 · 11 min

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

S3·E9 Core

Better Off Fred

Oct 26, 2020 · 11 min

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

S3·E10 Core

Big Hero Battle

Nov 2, 2020 · 11 min

4 2 Sing, a famous boy band, decides to be crime fighters and challenge Big Hero 6 to a superhero-off.

S3·E11 Core

Go Go the Wooweroo

Nov 2, 2020 · 11 min

Go Go reluctantly goes undercover as the co-host of Wendy Wower's television show.

S3·E12 Core

The New Nega-Globby

Nov 9, 2020 · 11 min

Globby and Honey Lemon feel guilty about trapping Nega-Globby in the Glop-Vac.

S3·E13 Core

De-Based

Nov 9, 2020 · 11 min

When Basemax opens a spam email, she gets infected with a virus.

S3·E14 Core

The MiSFIT

Feb 1, 2021 · 11 min

In order to recruit child prodigy Rishi Patel, Professor Granville enlists Hiro to give him a tour of SFIT.

S3·E15 Core

Return to Sycorax

Feb 1, 2021 · 11 min

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

S3·E16 Core

A Fresh Sparkles

Feb 8, 2021 · 11 min

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.

S3·E17 Core

Noodle Burger Ploy

Feb 8, 2021 · 11 min

Noodle Burger Boy and the mascots abduct Fred.

S3·E18 Mytharc

Krei-oke Night

Feb 15, 2021 · 11 min

Krei invents a karaoke machine.

S3·E19 Mytharc

The Mascot Upshot

Feb 15, 2021 · 11 min

Hiro plans to defeat The Mascots once and for all.

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