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We were asked to do the impossible. That's what we did. We've reinvented the very concept of transportation. Friends, I present Project Silent Sparrow.
―Krei, presenting his project

Project Silent Sparrow is the name of a portal that was built by Krei Tech as Alistair Krei tried to make science fiction a reality and to create a new way of transportation on Akuma Island. Yokai later used the portal as a weapon against Alistair.

Role in the film

Teleportation. The transport of matter instantaneously through space. Not science fiction anymore.
―Krei

Hiro Hamada saw blueprints of Silent Sparrow at the warehouse, where he first encountered Yokai and then later saw the masked man bringing one of the three parts of the portal to San Fransokyo Bay, but had no idea what it was, for or what the red bird logo meant. After upgrading himself, his friends and Baymax, the team headed to Akuma Island and discovered the last part of it as they were trying to find Yokai. The team watched footage from the control pit and saw Alistair Krei demonstrating the portal to the garment.

There were two portals and as something went through one, it will out of the other. They had planned to send a human pilot inside a pod through and out it. Even when anomalies were showing in the scans, Krei still went through with it to show the general that it was safe. But after the pod went in the scientists lost contact with it and the second portal destroyed itself, while the other one became a vortex and began sucking everything in until it was forcibly shut down, dooming the pilot in the space between the portals.

The team's theory of Krei being the masked man grew as they "realized" the reason why Krei had started the fire and stolen Hiro's Microbots, so he could take his technology back, but Yokai turns out to be Professor Robert Callaghan and he escapes with the end of the portal when Baymax had his healthcare chip reasserted into him. After Hiro calms down and the team saw the rest of the footage, they realize why Callaghan wanted it: the pilot was his daughter, Abigail Callaghan and he blamed Krei for her "death" because he sent her into the portal despite knowing that it was unstable.

As Krei introduces his new Krei Tech Building, Callaghan uses the microbots to capture Krei, put together and to hold up the portal as it starts to suck the building into it. He planned to use the portal to destroy everything that Krei built, before sending him into. Hiro was nearly sucked into the portal himself until he was saved my Baymax, he then gets the team to use the portal to their advantage as it sucks up the microbots. Callaghan is caught, but as the team try to find cover from the portal's growing destruction, Baymax picks up Abigail's life reading within the portal, meaning that she is still alive. Hiro and Baymax go into the portal to save her and discover it's void universe, as parts of Krei Tech floating around them. After the two find Abigail and are about to bring her home, Baymax's suit is damaged and uses his rocket fist (with his Healthcare chip clutched in it) to send Hiro and Abigail back, Hiro didn't want to leave Baymax in the void universe as the portal's shield was tearing it apart, but time was running out and it was the only way for them to get Abigail Callaghan back home to their universe. The portal then explodes when the two get out safely through and Abigail is sent to the hospital. Meanwhile, a seemingly regretful Callaghan is arrested and taken away by the police.

Gallery

Trivia

  • The portal's demonstration was set to open the film, with "Doctor" Robert Callaghan as its creator, but the directors replaced it with the Bot Fight scene. They thought that it would be better if the audience discovered both the portal and the incident with the Hiro and the team.
    • After the pilot went into the portal in the original layout of the scene, "something" came out of it.
  • The Silent Sparrow alludes to the sparrow of Japanese folklore, where the sparrow is said to be a symbol of unexpected fortune and a reward for kindness. This foreshadows the film's climax of Hiro rescuing Abigail from the portal and unknowingly Baymax's chip because of Baymax's sacrifice.
  • In the Big Hero 6 mange Tadashi was helping Callaghan with the portal so they could save Abigail. However when Hiro first discovers the portal, Tadashi was sucked into it. To make the portal work Yokai stole the city's power.
    • Like one of the deleted scenes in the film, Callaghan was the portal's creator in the manga.


v - e - d
Big Hero 6 logo
Media
Films and Television: Big Hero 6Big Hero 6: The Series

Books: MangaBig Hero 6 Big Golden Book Big Hero 6 Little Golden BookBig Hero 6 Chapter BookBig Hero 6 Junior NovelizationBig Hero 6 Pictureback with TattoosBig Hero 6 Step Into ReadingBig Hero 6 Deluxe Step into ReadingThe Art of Big Hero 6Big Hero 6 Ultimate Sticker BookBig Hero 6: Hiro and Tadashi
Video games: Big Hero 6: Battle in the BayBig Hero 6: Bot FightDisney INFINITY seriesBig Hero 6: Baymax BlastKingdom Hearts IIIDisney Crossy Road
Music: Soundtrack

Disney Parks
Big Hero 6 HeadquartersBig Hero 6 Ride

Entertainment: Baymax Super Exercise Expo

Characters
Film characters: Hiro HamadaBaymaxTadashi HamadaGo Go TomagoHoney LemonWasabiFredAunt CassRobert Callaghan/YokaiAbigail CallaghanAlistair KreiSergeant GersonMochiMr. YamaFred's FatherHeathcliff

Television Characters: Professor GranvilleObake
Deleted characters: The Fujitas

Episodes
Season One: "Baymax Returns" • "Fred's Bro-Trillion"
Organizations
Big Hero 6 (team)
Locations
San FransokyoLucky Cat CaféSan Fransokyo Institute of TechnologyAkuma Island
Objects
MicrobotsMegabotBaymax's ChipYokai's MaskLittle YamaSilent Sparrow
Songs
StoryMy Songs Know What You Did in the Dark (Light Em Up)Top of the World (Greek Fire)Immortals