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"set in a fictional metropolis called san fransokyo (a portmanteau of san francisco and tokyo), hiro hamada is a 14-year old prodigy who created a fighting robot (from his brother's huggable robot) named baymax to fill the void after the death of his brother, tadashi. to find the killer, hiro formed a team named big hero 6, which included wasabi, honey lemon, gogo tomago, fred, baymax, and himself."

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http://disney.wikia.com/wiki/big_hero_6
http://www.imdb.com/title/tt2245084/