Baymax’s best patients come together in a frantic race to help the healthcare companion when he lands in a dangerous situation.
Hiro wakes up to discover that Baymax is not in his charging port. He goes down to tell Aunt Cass, who is now wearing a boot designed by Hiro, and they are both concerned for Baymax's well being. While Hiro cannot find Baymax's exact location due to him being offline, but he can trace where he has been for the past couple of days. To Hiro's surprise, Cass chooses to shut the café down to search for the robot. They recruit Kiko, who has become stronger from swimming, Mbita, who has shifted to a fusion food, and Sofia who is now very confident about herself. While searching for Baymax, Kiko encounters Yachi who still has the lollipop stick and she leads them to the warehouse.
A construction worker refuses to call off the demolition and heads to lunch. In response, Mbita and Cass distract them with the food truck while the others sneak it. Hiro uses his upgraded microbots to open a grate and allow Yachi, Kiko and Sofia to enter. They find Baymax and lift his body up, just as the construction workers get back. Kiko and Sofia struggle to get Baymax back into the grate, but Yachi gets on the roof; causing the workers to cease the demolition until they do another sweep. The group get Baymax back into his port as he happily tells the group that he is "satisfied with my care". The gang declare themselves as "Little Hero 6", which Baymax finds ironic.
- Scott Adsit as Baymax
- Ryan Potter as Hiro Hamada
- Maya Rudolph as Aunt Cass
- Emily Kuroda as Kiko Tanaka
- Lilimar as Sofia
- Jaboukie Young-White as Mbita
- Alex Davis
- Carlos Ferros
- Dichen Lachman as Sayaka
- Angel Parker
- Sarah-Nicole Robles as Kara
- Brandon Scott as Foreman
- This is the first episode that does not feature a post credits scene.
- Upon arriving at the warehouse, Hiro states, "What is it with Baymax and warehouses?" An obvious nod to the events of the film where he followed him there and, by extension, the TV series where some of their fight scenes took place.