Too Young - [s3e5]

: The Earl of Lemongrab, a high-strung and screeching creation of PB, arrives to claim the throne. He argues that because PB is now "too young" to rule, he is the rightful heir.

: Lemongrab proves to be a tyrannical and socially inept ruler, sentencing candy citizens to "reconditioning" and the dungeon for minor infractions. Finn and PB attempt to prank him into leaving, but their efforts fail. [S3E5] Too Young

You can stream Adventure Time on platforms such as Max (formerly HBO Max) or Hulu, depending on your region. "Adventure Time" Too Young (TV Episode 2011) - IMDb : The Earl of Lemongrab, a high-strung and

: Fans often list this as a "Required" episode for understanding the overarching plot of the series. Where to Watch Finn and PB attempt to prank him into

Following the events of "Mortal Recoil," Princess Bubblegum has de-aged to 13 years old because there was not enough "candy biomass" to restore her to her full 18-year-old self.

: Realizing the kingdom is suffering, PB decides she must return to her 18-year-old self. The candy citizens provide pieces of their own candy biomass to "fatten her up." She reverts to her adult form, immediately reassumes the throne, and fires Lemongrab.

: It establishes that PB "created" Lemongrab, marking the first time the show hints at her complex history as a scientist and creator of life.