Daniel Gerson

Mike and Sulley begin their day with a lively commute to work. Mike, eager to drive his new car, is thwarted by Sulley, who insists they walk due to a scream shortage, leading to humorous bickering and observations of their fellow Monstropolis citizens.

Hiro and Baymax discover that Hiro's microbots are being mass-produced and controlled by a mysterious figure. They attempt to escape a relentless swarm of microbots, leading to a frantic chase through a factory and city streets.

After Hiro gets arrested for bot fighting, his older brother Tadashi bails him out, leading to a scolding from their Aunt Cass. Later, Tadashi confronts Hiro about his reckless behavior and tries to encourage him to use his intelligence for more productive endeavors, eventually agreeing to take him to another bot fight.

Hiro meets Baymax for the first time, a healthcare companion created by his brother Tadashi. Hiro, initially skeptical, begins to understand the robot's advanced capabilities and Tadashi's vision for it.

During a training session for new recruits, Ms. Flint critiques a clumsy trainee's failure to follow safety protocols. The CEO, Mr. Waternoose, interrupts to emphasize the grave danger human children pose to the monster world and the desperate need for high-quality screams to power their city.

Mike puts Sulley through a rigorous monster training routine, preparing him for his job as a scarer. Later, they watch a Monsters, Inc. commercial where Mike is accidentally obscured, much to his dismay.

After getting arrested for illegal bot fighting, Hiro and Tadashi face the wrath of their Aunt Cass. Later, Tadashi confronts Hiro about his choices, leading to a discussion about their future and past, and Tadashi's decision to accompany Hiro to another bot fight.

Hiro, a young boy, encounters his healthcare companion robot, Baymax, after a minor injury. Baymax, ever-literal, misinterprets Hiro's emotional state as puberty, leading to a humorous and awkward exchange. The scene highlights Baymax's unwavering dedication to his programming and Hiro's struggle to deal with the robot's unconventional care.