Ep 27. BlackJack

In the season 5 episode 27 of SpongeBob SquarePants titled "BlackJack", SpongeBob is about to embark on a trip to visit his grandma, but he receives a letter from his cousin BlackJack, who he has not seen in years. The letter informs SpongeBob that BlackJack has been released from prison and wants to pay him a visit.

SpongeBob is nervous about the visit. His cousin has a reputation for being tough and intimidating, and SpongeBob has not seen him since childhood. His worries increase when he recalls being bullied by BlackJack in the past.

When BlackJack finally arrives, SpongeBob is initially relieved to see that he does not appear as scary as he remembered. However, he soon realizes that BlackJack has not changed much and is still a bully. BlackJack quickly takes over SpongeBob's life, making him do his bidding and causing chaos throughout Bikini Bottom.

SpongeBob eventually reaches his breaking point and stands up to BlackJack, telling him that he will not be pushed around anymore. This results in a physical altercation between the two, with the winner surprising everyone.

Throughout the episode, SpongeBob learns to stand up for himself and assert his boundaries. The episode also explores the theme of family relationships, as SpongeBob grapples with conflicting emotions towards his cousin.