Ep 20. Steamer's Revenge

Hiro and the team are back in action in Big Hero 6 The Series season 1 episode 20, titled "Steamer's Revenge". The episode takes place after the events of the previous episode, where the Big Hero 6 team was able to stop Liv Amara's evil plan to create an army of robots.

In "Steamer's Revenge", the team faces a new challenge in the form of a super-villain named Steam Smythe. Steam Smythe is a former classmate of Aunt Cass, who is known as the owner of a famous restaurant in San Fransokyo. He was expelled from Cass's culinary school for stealing her recipes, and he has been harboring a grudge against her ever since.

Steam Smythe is a genius inventor who has created a powerful steam-powered suit that gives him superhuman strength and speed. He uses his suit to carry out a series of revenge attacks against Cass and other prominent chefs in the city. Hiro and the Big Hero 6 team step in to protect Aunt Cass and stop Steam Smythe's reign of terror.

The team's first encounter with Steam Smythe takes place at a cooking competition hosted by Cass. Steam Smythe crashes the competition and captures Cass, using her as leverage to force Hiro and his friends to retrieve a valuable item from a high-security vault. Hiro and the team must use all their skills and resources to retrieve the item and save Cass from Steam Smythe's clutches.

The episode also shows the personal sides of the characters. Hiro expresses his guilt over letting Cass get captured, and Go Go helps him deal with his feelings. Meanwhile, Fred is excited about the idea of facing a real super-villain, and works on creating a new superhero persona for himself.

As the episode progresses, things take a turn for the worse when Steam Smythe reveals his true plan - he wants to destroy San Fransokyo's entire food supply, leaving the city in chaos. The Big Hero 6 team must race against time to stop Steam Smythe from carrying out his plan and save the city from disaster.

Overall, "Steamer's Revenge" is a fun and action-packed episode that highlights the strengths of the Big Hero 6 team. It also showcases the team's personal lives and their relationships with each other, making it a well-rounded episode that will satisfy both new and old fans of the hit animated series.