Return to the fantastical city of San Fransokyo where the affable, inflatable, inimitable healthcare companion robot, Baymax, sets out to do what he was programmed to do: help others.
An adventurous young boy discovers that puddles can be portals to a fantastical world, but struggles to get his sister's attention away from her phone to see the magic in the world around her.
Life is hard enough for an exchange student at a new school, but as the only earthling at a school for aliens, the central character in this fanciful story is the ultimate outsider and must prove her worth to be accepted by her unusual new classmates.