it’s a very special Adventure Time holiday double-episode detailing the backstory of the Ice King. Finn and Jake go on a scavenger hunt, when they discover a suitcase full of vhs tapes. those tapes serve as a video diary revealing all of Ice King’s deepest darkest secrets; the kidnapping of princesses, the lamenting of his various run-ins with Finn and Jake, the love he never received from his father, and a penguin dance party.
when the ice King finds out that Finn and Jake have his tapes, he creates an army of snowmen to get them back. it isn’t until the very end of the tapes, that Finn and Jake find out the true meaning behind the Ice King.
the Ice King’s real name is Simon Petrakoff, and he was studying to become an antiquarian of ancient artifacts. he stumbled across the crown, that would alter the course of his life. after trying the crown on, his life fell apart. his fiance left him, and the crown transformed him from a mild-mannered scholar into a bitter, lonely, old man. I was thinking of Mr. Freeze from Batman, when watching this.
Finn and Jake give Ice King back his tapes. and so they all sit around watching videos, to celebrate the day that Finn and Jake had a fleeting moment of empathy for the biggest weirdo in Ooo.