Big Hero 6 Season 3 Episode 15 Synopsis

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

Big Hero 6 Season 3 Episodes...

• s03e01 - The Hyper-potamus Pizza-Party-torium
• s03e02 - Mayor for a Day
• s03e03 - The Dog Craze of Summer
• s03e04 - Trading Chips
• s03e05 - Mini Noodle Burger Max
• s03e06 - A Friendly Face
• s03e07 - Big Chibi 6
• s03e08 - Cobra and Mongoose
• s03e09 - Better Off Fred
• s03e10 - Big Hero Battle
• s03e11 - Go Go the Wooweroo
• s03e12 - The New Nega-Globby
• s03e13 - De-Based
• s03e14 - The MiSFIT
• s03e15 - Return to Sycorax
• s03e16 - A Fresh Sparkles
• s03e17 - Noodle Burger Ploy
• s03e18 - Krei-oke Night
• s03e19 - The Mascot Upshot

Big Hero 6 Show Summary

As the new prodigy at San Fransokyo Institute of Technology, Hiro now faces daunting academic challenges and the social trials of being the little man on campus. Off campus, the stakes are raised for the high-tech heroes as they must protect their city from an array of scientifically enhanced villains.