Jake needs his daughter Charlie's help in an underground Card Wars tourney to move on from his embarrassing past.
The episode begins with Jake, Charlie, and BMO sailing on an ocean. Charlie shows her cards to BMO for entertainment, afterwards Jake ask Charlie about his cards from Card Wars. Charlie becomes confused, and BMO jumps off the boat out of resentment for the game. Jake attempts to rescue it, but decides to disregard it out of fear for being late to the tourney.
He then clears up Charlie's confusion with the game, by explaining to her a brief synopsis and the mechanics of the game. This causes Charlie to become uninterested; she does not involve rules with cards. Jake then attempts to convince her, leading to a wager of one of his bones for one game.
The two arrive at the tournament, which is inside an abandoned oil rig. Upon entering, and greeting an usher, Jake introduces the contestants to her. They eventually encounter the reigning champions, Grand Prix and Moniker. Jake reunites with the two, introducing them to his daughter. Jake dismisses himself, and Charlie teases Jake about his love interests.
Jake and Charlie enter the first round, and they win one game. Charlie announces her departure, leaving Jake confused until she brings up her previous deal: one bone and one game. Jake tries to offer her all his bones to persuade Charlie to continue, but she rejects the offer, telling him that she only needs one. As Charlie departs, Jake decides to continue the tournament, using his stretchy powers to fake Charlie's continued presence. Grand Prix and Moniker indicate to Jake that they know he's lost his partner, but they're willing to keep his secret. Jake is unmoved by their generosity.
Meanwhile, Charlie leaves the oil rig, growing to gargantuan size in order to quickly cross the globe and return to her home in an Egyptian pyramid. Once home, Charlie starts to perform a ritual, using the bone Jake had given her, some hair from Lady Rainicorn, and some cards.
At the tournament, Jake faces a possible defeat from his opponents. He decides to force a draw, which will allow him to continue in the tourney, much to the audience's dismay. Jake realizes that he is still in possession of his younger self's attitude, and runs into the restroom.
Back at Charlie's home, her ritual displays herself at intervals of ten years, beginning at her 20s. Here she acknowledges her faults of youth. She sees herself growing older and learning the lessons of age, finally ending up in her 90s, old and wise. Charlie merges with her future self, and has a sudden realization that she's been selfish to and dismissive of her father.
Back in the oil rig's restroom, Jake struggles with the temptation of his twenty year old self; he wants to rid himself of those violent and angry compulsions, but can't separate himself from his younger identity. Charlie returns as Jake struggles; she forces out Jake's immature subconscious, allowing him to move on and grow up. The two begin their battle with Grand Prix and Moniker, leading to the reigning champs coming out victorious again. Jake congratulates them, and the episode ends with him burying his "twenties."
- Turtle People
- Mike R.
- Captain Majesty
- Mr. Outrageous
- Mr. International
- Pete the Punk
- Jamaica (cameo)
- Turtle Princess (cameo)
Mentioned and pictured
- Finn is absent in this episode.
- This episode reveals why Jake gets so upset easily whenever he loses Card Wars.
- This episode marks Charlie's first speaking role.
- She is also the last of Jake's kids to have English dialogue in an episode.
- This episode is a sequel to the season 4 episode "Card Wars."
- This is also the first major appearance of Card Wars since the titular episode.
- It is revealed that Charlie lives in an Egyptian pyramid. The pyramid is shown to still be in relatively good condition, suggesting Egypt may not have been targeted during The Great Mushroom War, or that this pyramid was not located near any strategic targets.
- It is also revealed that Charlie inherited her mother's ability to phase through objects, as well as her father's ability to change size.
- Charlie sees BMO as female, referring to it as "she."
- The people Jake introduces to Charlie are the same ones who were in Jake's contacts from his old phone as seen in "My Two Favorite People."
- This episode is the sequel to season 4's "Card Wars."
- Pete the Punk has the same green skin, leather jacket, and shirt as The Hooligans Who Love Candles from "Blade of Grass."
- The summoned "Feed Man" from Team Dignified's first game in the tournament is reminiscent of Finn in appearance and movement, particularly when he had a potato sack over his head in "Power Animal" and when he was made out of bread in "You Forgot Your Floaties".
- The "Fat Baby King" set used to instantly win in Card Wars is similar to that of "Exodia the Forbidden One" from the Yu-Gi-Oh! franchise.
- One of the cards had a monster that looks similar to a Troll doll.
- Mr. International looks similar to the Japanese cartoon character, Anpanman, with similar noses and outfits.
- This episode seems to take much influence from Studio Ghibli.
- The cards Charlie uses throughout the episode seem to be Tarot cards, which are used to predict the future.
- This episode was previously titled "Dignified." 
- In the early version of this episode, Finn was initially going to appear at the beginning, but this was cut in the final version which explains his absence.
This episode was censored in some countries. See Censorship of Adventure Time for more information.