The episode opens with a parallel sequence showing the mundane, subdued daily lives of Beth and Space Beth, highlighting their boredom and dissatisfaction. Beth is called out to a horse hospital for an operation, while Space Beth is on a routine bounty mission, establishing their separate but equally unfulfilling existences.

Rick decides to take the entire Sanchez family--himself, Morty, Summer, Jerry, and both Beths--to an Earth-themed amusement park called Earthworld, created by an alien named Dr. Dogball. The park is designed to mimic Earth culture but is run by an alien with a limited understanding of humans, leading to odd and unsettling attractions.

At the park, Beth and Space Beth use a machine that reverses their aging, turning them into their younger selves. As young versions of themselves, they begin to terrorize their neighbor Gene and bring out old toys, including a blue teddy bear with anatomically correct innards, referencing Beth's childhood and her stabbing habit.

Meanwhile, Morty meets an alien girl who is interested in experiencing a relationship with a human, but her affection is not truly for Morty himself. Summer and Jerry explore the park separately and discover a secret: Dr. Dogball has been capturing giant-headed beings ("bigheads") and holding them in a factory within the park.

Rick receives a notification that their neighbor has called 911 due to the chaos caused by the two young Beths. He leaves the park to handle the situation at home, where the two Beths have been causing trouble.

Back at the park, Morty, Summer, and Jerry learn more about Dr. Dogball's operation. Dogball releases the captured bigheads, but he uses mind-controlling rays to make them feral and savage. This unleashes chaos in the park as the bigheads go on a rampage.

Morty, Summer, and Jerry must flee the park to escape the attacking bigheads. Summer protects Morty from a bighead resembling a member of the Culkin family during their escape. They hijack a vehicle and manage to get out of the park, arriving home bloodied and disheveled, contrasting with the calm evening Rick and the Beths are spending.

At home, the two young Beths turn Rick into a 360-year-old version of himself using the same age-reversing machine. They blame Rick for their troubled lives, accusing him of not being involved in Beth's childhood. Rick reveals that he is from a different reality where his Beth has already died, but this does not calm their anger.

The Beths attack Rick physically, but Rick tells them he is proud of them for expressing their frustration. This acknowledgment causes the Beths to stop and begin crying, feeling seen and reassured by Rick's words. The emotional moment leads them to reverse the aging machine's effects, restoring Rick to his normal age.

Rick, the Beths, and the rest of the family then work together to fix the damage caused by the two young Beths. Rick builds a treehouse for his daughters as a gesture of care and reconciliation. Afterward, the Beths are returned to their normal ages.

The episode ends with the family enjoying a peaceful sunset together, symbolizing a moment of calm and connection after the chaotic events of the day.

At the end of Rick and Morty Season 8, Episode 6, "The CuRicksous Case of Bethjamin Button," Rick and his daughters, Beth and Space Beth, reconcile after turning into younger versions of themselves and causing chaos. They fix the damage they caused and watch the sunset together peacefully. Meanwhile, Jerry, Summer, and Morty escape a dangerous situation at an alien theme park, returning home battered but safe.

The episode concludes with a series of emotionally charged and action-packed scenes that unfold as follows:

Rick, Beth, and Space Beth have been transformed into younger versions of themselves by a machine, which leads to a chaotic rampage, including attacking their neighbor Gene. The two Beths express anger toward Rick, blaming him for their troubled pasts and his absence during their childhood. Rick reveals that he is from a different reality where his Beth has already died, which does not ease their frustration. The Beths physically confront Rick, but he responds by acknowledging their pain and expressing pride in their courage to confront him. This moment of emotional honesty causes the Beths to break down in tears, leading to a heartfelt reconciliation. Together, the trio repair the destruction they caused and share a quiet moment watching the sunset, symbolizing a tentative peace and renewed family bond.

Meanwhile, Jerry, Summer, and Morty are caught up in a subplot at Earthworld, an alien theme park. After Rick leaves, Dogball, an alien, takes Summer and Jerry to a factory where "bigheads"--alien celebrities--are being held captive. Dogball frees them by using mind-control rays that make the bigheads feral. Morty is taken by an alien girl interested in experiencing life with a human. Summer and Jerry narrowly escape attacks from the now savage bigheads. Eventually, Summer protects Morty from a hostile bighead from the Culkin family, and the trio reunites. They manage to escape the park, arriving home bloodied and exhausted, contrasting with the peaceful evening Rick and the Beths are enjoying.

In the final moments, the episode juxtaposes the calm resolution of Rick and the Beths' emotional conflict with the chaotic and violent escape of Jerry, Summer, and Morty, highlighting the fractured but interconnected nature of the family's experiences.

The fates of the main characters at the episode's end are:

• Rick: Reconciled with his daughters, emotionally vulnerable but proud, restored to normal age.
• Beth and Space Beth: Reconciled with Rick, having confronted their past and their feelings toward him, back to their normal selves.
• Jerry, Summer, and Morty: Physically battered but safe, having escaped the dangerous theme park ordeal together.

This ending balances emotional resolution within the family with the ongoing external dangers they face, setting the stage for future developments.

Yes, Rick and Morty Season 8, Episode 6 ("The CuRicksous Case of Bethjamin Button") has a post-credits scene. This scene humorously explains why the police never show up to investigate the chaotic events at the Smith household despite the frequent and extreme disturbances caused by Rick's inventions and alien encounters. In the scene, it is revealed that when Gene tries to call 911 after being terrorized by the de-aged Beths, the call is intercepted or otherwise prevented, providing a long-awaited in-universe explanation for the absence of law enforcement throughout the series. This post-credits moment adds a comedic yet satisfying answer to a mystery fans have pondered for over a decade.

Beth and Space Beth use a de-aging machine that causes them to regress to their younger selves, which leads to chaotic behavior including terrorizing their neighbor Gene and revisiting childhood memories and toys.

The blue teddy bear with anatomically correct innards is a nod to Beth's childhood and her stabbing habit, symbolizing her complex and possibly traumatic past that resurfaces when she and Space Beth become younger.

Rick takes Morty, Summer, and Jerry to an alien-created Earth-themed amusement park called Earthworld, where they discover the park is run by Dr. Dogball, who releases giant-headed creatures leading to chaos and a bloody fight, forcing the trio to escape in a hijacked vehicle.

After the younger Beths age Rick and physically beat him up, Rick expresses pride in them, which prompts them to restore him to normal. Rick then builds a tree house for his daughters and returns them to their normal ages as well, ending on a relatively wholesome note.

Despite the chaos, the episode ends with Rick showing genuine pride and affection for Beth and Space Beth, which is a rare moment of emotional connection. This moment leads to reconciliation and the restoration of their normal selves, highlighting Rick's complex feelings toward his daughters.

The episode "The CuRicksous Case of Bethjamin Button" from Rick and Morty Season 8 is rated TV-14 and is not considered family-friendly for young children or sensitive viewers. It contains potentially objectionable content typical of the series, including moderate sexual references and nudity (mostly censored or blurred), severe violence and gore, strong profanity, and severe alcohol/drug use. The show also features intense and frightening scenes that may upset sensitive viewers.

Specifically, viewers might encounter: - Moderate sexual innuendos and references, some involving nudity or implied sexual situations, though usually comedic and censored on streaming platforms. - Severe violence and gore consistent with the show's sci-fi and often dark tone. - Frequent strong language and profanity. - Depictions or references to alcohol, drugs, and smoking. - Intense or frightening moments that could be disturbing for children or sensitive individuals.

Given these elements, the episode is best suited for mature audiences and is not recommended for children or those sensitive to mature themes.