Hiro is so astonished by what he sees and wants to join the college, but he’d be accepted only if he could invent something that will impress the head of the department, Professor Callaghan (James Cromwell). He comes up with an amazing project involving microbots that immediately piques the interest of a big businessman.
Hiro immediately gets along well with his brother's friends, a formidable team of tech specialists: the live wire Go Go Tomago (Jamie Chung); the chemistry whiz Honey Lemon (Genesis Rodriguez); the big but neatness freak Wasabi (Damon Wayans Jr.) and the hilarious sidekick who turns out to be very rich, Fred (T.J. Miller). Then tragedy strikes after a fire traps and kills both Tadashi and Prof. Callaghan. Depressed, Hiro retreats into his bedroom in the apartment above a coffee shop run by his kind Aunt Cass (Maya Rudolph). To Hiro’s rescue comes, Tadashi’s invention, a 10-foot fall inflatable robot who looks like a giant marshmallow and programmed to be a caregiver tending to sick people
Baymax consoles the grieving and lonely Hiro, figuring in scenes involving physical humor, like when he squeezes in and out of tight spots or stumbles about like a drunk when his battery is low.

There’s a twist in the story that’s not totally satisfying but all in all, it’s an enjoyable film that parents and their kids can enjoy together. Don’t leave when you see the credits as there is an additional sequence revealing who the father of Fred is. You have to be familiar with the origins of Marvel to appreciate it.
The movie also comes with a short animated feature, “Feast”, that dog-lovers will surely enjoy. It is shot from an ankle-level point of view and is about the relationship of a Boston terrier named Winston and how it plays cupid for its owner.