This is like a resume from the movie,if you watched the movie you'll know.The animation isn't good,lol,the sound and stuff aren't good either,but if you know the what's the meaning behind the story you'll for sure get emotional,i know cause i did. After loosing his old brother,Tadashi,Hiro get depressed and almost gave up in everything he wanted to do.Baymax is a "robot" made by Tadashi before he died for hero,to take care and help him.This short shows their interaction in an abstract perspective,how Bayman helped Hiro and how they turned into good friends. If you didn't see the movie and the related story,this may have no sense,butstill a good short if you want to get one more point in completed list,os just don't know what do watch right now.