Hiro's faith in his friends starts to fray when they show up late to a mission. Hiro and a - Big Hero 6 must attempt to stop Noodle Burger Boy and his new sisters.
Hiro switches Bayman and Mini-Max's chip so that Baymax can rescue Mochi. A low-charged Bayman and Mini-Max join forces with Noodle Burger Boy to save Big Hero 6.
4 2 Sing, a famous boy band, decide to be crime fighters and challenge Big Hero 6 to a "superhero-off." Go Go reluctantly goes undercover as the co-host of Wendy Wower's TV show.
In order to recruit child prodigy Rishi Patel, Professor Granville enlists Hiro to give him a tour of SFIT. When Krei is lost in the old Sycorax building, the heroes must search the abandoned monster factory to find him.
When Big Hero 6 find Mr. Sparkles working at the Pizza Party-torium, he tells them he's decided to leave the world of crime behind. Noodle Burger Boy and the mascots abduct Fred.
