Ep 1. Cousin Sid

In season four of Teenage Mutant Ninja Turtles, the first episode titled "Cousin Sid" follows the four mutant ninja turtles - Leonardo, Raphael, Donatello, and Michelangelo - as they welcome a new member to their family, their cousin Sid.

Upon Sid's unexpected arrival, the turtles quickly realize that their cousin is not like them. Unlike the turtles, Sid is not a mutant; he is a human. Despite his lack of unique abilities, Sid is fascinated by his cousins' mutation and their martial arts training.

Sid's admiration quickly turns to obsession, as he impulsively decides to mimic the turtles' abilities by donning a makeshift ninja suit and picking fights with anyone who crosses him. The turtles are forced to intervene when Sid's actions put him in danger, and they realize that they must teach him how to be responsible with his newfound talents.

As the episode progresses, Sid struggles to find his place among the turtles, feeling left out because he lacks their physical abilities. The turtles, with the help of their sensei Master Splinter, teach Sid that it's not about having special powers or fighting skills - it's about being there for each other as family.

As the episode comes to a close, Sid proves his worth by using his unique talents to save the day and win the turtles' respect. The turtles resolve to make Sid a permanent part of their family, as they all realize that the ties that bind them together are stronger than any mutations.

Overall, "Cousin Sid" is a heartwarming episode that explores the themes of family, inclusion, and acceptance. It highlights the importance of recognizing and valuing individual talents, even if they differ from our own. The episode is sure to resonate with fans of all ages, from young viewers to nostalgic adults who grew up with the original Teenage Mutant Ninja Turtles.