Big Hero 6
The film is set in a fictional futuristic hybrid metropolis called San Fransokyo (a portmanteau of San Francisco and Tokyo). Hiro Hamada and his brother, Tadashi, live with their Aunt Cass because their parents died when Hiro was only three years old. Tadashi takes Hiro to his college, which Hiro calls "Nerd School". Tadashi shows Hiro his friends, Gogo Tomago, Honey Lemon, Fred, and Wasabi. After Tadashi gives Hiro the tour of their labs, he brings Hiro to his own lab, and shows his experiment that he's been working on , Baymax. Baymax is a robot healthcare nurse. Hiro observes Baymax and marvels at how well his brother made him. Tadashi shows Hiro a chip container on Baymax's heart area. The chip in Baymax's container is what makes Baymax act the way he does. After seeing everything at the school Hiro wants to apply.
Tadashi explains that each year in their college there is an exhibition win which people attend to show off their inventions, and compete for the opportunity to gain personal invitations to the school. Hiro works hard to prepare for the exhibition over a number of weeks. Hiro unveils his invention: microbots, a type of nanorobotics. Hiro proceeds to put on a neural-cranial transmitter, which allows him to control his microbots into any form, as long as he can imagine it. Callaghan is very impressed with Hiro's invention, however, another very high-profile man, Allistair Krei, talks about buying Hiro's invention. Callaghan persuades Hiro to going to the school instead. After celebrating Hiro's admission, Hiro and Tadashi are alarmed to see a sudden fire that has broken out at the exhibition building. Tadashi attempts to go inside to save Professor Callaghan from the burning building, and as Hiro tries to follow him inside, the entire building explodes and Hiro gets knocked unconscious. Tadashi and Professor Callaghan are both pronounced dead, and after their funeral, Hiro is depressed at the loss of his brother and spends time secluded.
When Hiro accidentally drops his robot on his toe when Baymax comes out of portable storage area and offers to help Hiro. Hiro upon hearing a strange sound under his bed, notes a single microbot wiggling around. Hiro believes the microbot to be broken, but Baymax believes the microbot is trying to get somewhere. Baymax leaves the house trying to locate where it is headed with Hiro trying to chase him down to stop until they reach an abandoned warehouse. The two climb inside and Hiro finds millions of microbots being made. The microbots suddenly begin to rise up out of their storage containers and Hiro and Baymax are chased out of the building by a masked villain. Hiro decides to take matters into his own hands and builds Baymax his first set of upgrades. Hiro also downloads karate moves on another chip for Baymax to learn karate. After downloading the karate moves and building the parts for Baymax's armor, Hiro loads the chip into another slot in Baymax's card storage and Hiro helps Baymax train. Later, Hiro and Baymax go to the port of San Fransokyo to try to find the masked villain, but Fred, Gogo, Honey Lemon, and Wasabi follow as Baymax had contacted them. The masked villain finds them and a high speed chase ensues as they attempt to get away. They eventually lose them by hiding in Fred's enormous mansion, owned by his parents, and Hiro draws a symbol of a bird in a circle, a logo he saw on a piece of equipment the villain was searching for underwater. Hiro realizes that they all need special abilities and they have to work together to defeat the villain, so he builds suits for each friend according to their scientific specialties.
After testing out everybody's special power and how to steal the villain's mask, which allows him to control the microbots, Hiro tests out Baymax's wings and flying. When they're ready, Hiro and Baymax take everyone to an off-shore island where Baymax scanned and found the villain. Baymax leads them to a laboratory where they discover leftover debris from a former laboratory and the logo Hiro drew in Fred's house. They find their way to a control room with many monitors that play back a film of Allistair Krei testing a teleportation devce for top officials. Krei uses a pod with a test pilot in order to note to the observers the teleporter's true abilities. Despite unusual signs from the control pannel, Krei decides to continue with the procedure. It backfires, and that's where the recording ends. The six begin to think that Krei is the masked supervillain, when he shows up behind he attempts to kill them. The team carry out their plan to remove the neural-cranial transmitter from the villain. They eventually do so, and he is revealed to be Professor Callaghan, who had survived the explosion using Hero's microbots. Hiro goes into a rage when he realizes Tadashi died for nothing and asks Baymax to destroy Callaghan. However, because Baymax is a robot healthcare nurse, he is not programmed to kill a human. Hiro then takes out Tadashi's health care chip, leaving only the red fighting chip in him. Baymax tries to kill Callaghan. Gogo, Honey Lemon, Fred, and Wasabi try to stop Baymax and tell Hiro that this wasn't the part of the plan, but Hiro ignores them and Baymax easily throws the four of them aside. Honey Lemon finds the green card that has Baymax's information on it and Honey Lemon safely puts back the green card inside Baymax's storage. Callaghan escapes after taking back his mask which holds the neural-cranial transmitter. Hiro, frustrated with his team due to their intervention flies away with Baymax. He asks Baymax to scan for Callaghan again but Baymax's scanning ability is broken. Hiro takes him back to his garage and fixes Baymax's scanning ability and wants Baymax to kill Callaghan again. However, Baymax refuses to do so, and when Hiro tries to take out the green card again, Baymax prevents the card storage from being opened again. Baymax shows Hiro Tadashi's past clips of him attempting to perfect Baymax, which took eighty-four times. After seeing his brother, Hiro cries as his four friends arrive, telling him that it's alright, at which point Hiro apologizes for his actions.
Hiro realizes he has to stop Callaghan the right way, and as they were about to go stop Callaghan, Honey Lemon shows him another clip of the teleporter malfunction and realize that the woman that was in the pod was Callaghan's daughter, Abigail, and she was lost and presumed "dead" in the malfunction. They realize that Krei would be Callaghan's target, and leave to attend Krei's building where he was giving a speech. Callaghan arrived first and put the portal together above Krei's building using the microbots to destroy Krei's building. The six heroes try to stop Callaghan, but each except for Hiro gets trapped by microbots. After a long fight, and upon escaping the six continue to carry out the plan to destroy the microbots and have them sucked through the portal. Eventually, Callaghan is left only standing on two slim poles of microbots. Hiro removes the mask, which deactivates the microbots, and the teleporter falls to the ground. The 6 think they've won, until they realize the portal is still on and it will collapse on itself after staying on for a good period of time so they decide to move farther away when it explodes. Baymax, however, stays put and says he detects a sign of female life in the portal and the female appears to be in hypersleep. Everyone realizes that the woman is Abigail and Baymax and Hiro hurry in to save her.
After entering the portal, Baymax and Hiro cautiously avoid flying debris finding Abigail's pod. Baymax pushes Abigail's pod back to the exit to leave, but are struck by a large chunk of debris. Baymax takes the blow. Luckily, everyone was still safe, but half of Baymax's body armor was stripped away in the impact and his thrusters were too damaged to work. Baymax points out that his rocket hand was still active and when pressed against the pod, could launch Hiro and the pod safely back home. Hiro doesn't want Baymax to do that and fights with him until he realizes Baymax has a point and sadly parts from him, but not without a loving hug from one another, and finally noting he is "satisfied with his service" the key words to allow Baymax to shut down. Baymax puts his hand against the back of the pod and shoots his rocket hand off to propel Hiro and the pod back. Hiro and the pod make it out right before the portal explodes and the four friends rush up to celebrate until Wasabi notices that Baymax wasn't there, to which Hiro says he didn't make it. After some time, Hiro in Tadashi's former lab and set Baymax's hand armor on a table. Just as he was about to leave, he notices something flashing in Baymax's hand that catches his eye. He opens the hand and finds Baymax's green personality card lying there, complete with Tadashi Hamada's name on it. Hiro brings Baymax back. Baymax is reborn and after rebuilding the armor, the six heroes aim to help out the city from thereon out.
In a post-credit's scene Fred, back at his mansion, talks to a photo of his father, telling him he'd be proud of him. Fred accidentally opens a secret door and, upon entering, finds weapons, armor, and superhero gear. His father then arrives (voiced by Stan Lee) and states they have a lot to talk about before the two embrace.
