The episode begins with the boys--Stan, Kyle, Cartman, and Kenny--visiting the local aquarium. They are excited to see a new orca whale named Willzyx, who is being showcased as a star attraction. The boys are captivated by Willzyx's performance, but they soon learn that the whale is unhappy and is being kept in captivity. This revelation sparks a sense of empathy in Stan and Kyle, who feel that Willzyx deserves to be free.

As the boys discuss the situation, they overhear a conversation between the aquarium staff, who mention that Willzyx is being sold to a marine park in Mexico. This news deeply disturbs Stan and Kyle, who decide that they must take action to save Willzyx from being shipped away. They hatch a plan to free the whale, believing that it is their moral duty to help him escape.

Meanwhile, Cartman is more interested in the potential fame and fortune that could come from exploiting the situation. He devises a scheme to film the whale's escape and sell the footage for profit. He tries to convince the other boys to join him in this venture, but Stan and Kyle remain focused on the goal of freeing Willzyx without any ulterior motives.

The boys begin to gather supplies for their rescue mission. They create a makeshift boat using a large inflatable raft and gather ropes and other materials they think will help them in their endeavor. They are determined to execute their plan under the cover of night to avoid detection by the aquarium staff.

On the night of the escape, the boys sneak into the aquarium. They manage to evade security and reach Willzyx's tank. The atmosphere is tense as they work to free the whale. Stan and Kyle are filled with a mix of excitement and fear, while Cartman is more focused on capturing the moment on camera. They struggle to figure out how to get Willzyx out of the tank, and after some trial and error, they finally manage to cut the netting that holds him in place.

As Willzyx is freed, he jumps out of the tank and lands on the floor of the aquarium. The boys cheer, but their celebration is short-lived as they realize they need to get him to the ocean. They push Willzyx towards the exit, but the whale is heavy and they struggle to move him. The aquarium staff soon discovers the commotion and alarms start blaring, adding urgency to their escape.

In a frantic sequence, the boys manage to get Willzyx outside, but they are confronted by the aquarium's security personnel. A chase ensues as the boys try to evade capture while guiding Willzyx towards the nearby body of water. The tension escalates as they dodge security guards and navigate through the streets of South Park.

Eventually, they reach the water, but Willzyx is exhausted and struggling to swim. The boys encourage him to go, and after a moment of hesitation, Willzyx finally swims away into the ocean. The boys watch with a mix of relief and joy, feeling that they have accomplished something significant.

However, their victory is short-lived as they are soon apprehended by the authorities. The boys are taken back to the aquarium, where they face consequences for their actions. The episode concludes with a humorous twist, as the boys are celebrated as heroes by some, while others criticize them for their reckless behavior. The final scene shows Willzyx happily swimming in the ocean, free at last, while the boys reflect on their adventure and the chaos that ensued.

In the ending of "Free Willzyx," the boys successfully free the whale, Willzyx, from captivity. They manage to get him to the ocean, where he can live freely. However, the episode concludes with a poignant moment as the boys realize that their actions may not have the impact they hoped for, as Willzyx swims away, leaving them with mixed feelings about their adventure.

As the episode nears its conclusion, the scene shifts to the boys--Stan, Kyle, Cartman, and Kenny--who have been on a mission to liberate Willzyx, a whale that has been held in captivity at Sea Park. After a series of comedic and chaotic events, they finally reach the park where Willzyx is kept. The boys are filled with a sense of urgency and determination, driven by their belief that they are doing the right thing by freeing the whale.

In a climactic moment, they execute their plan to break into the park. The tension builds as they navigate through the park, avoiding security and making their way to Willzyx's tank. The boys are filled with a mix of excitement and fear, knowing that they are about to take a significant risk. When they finally reach Willzyx, they are met with a moment of awe as they see the whale up close. The emotional weight of the situation hits them, and they feel a deep connection to the creature they are about to free.

After a series of comedic mishaps, they manage to release Willzyx from his tank. The whale, initially confused, soon realizes he is free and begins to swim joyfully. The boys cheer, feeling a sense of accomplishment and pride in their actions. They watch as Willzyx makes his way toward the ocean, a symbol of their success and the culmination of their efforts.

However, as Willzyx swims away, the boys are left with a bittersweet feeling. They had hoped that freeing the whale would lead to a grand, heroic moment, but instead, they are confronted with the reality that their actions may not change the world as they envisioned. The scene captures their mixed emotions--joy for Willzyx's freedom, but also a sense of uncertainty about the impact of their actions.

In the final moments, the boys reflect on their adventure. Stan expresses a sense of fulfillment, while Kyle contemplates the complexities of their mission. Cartman, ever self-centered, shifts the focus back to himself, making a joke that lightens the mood but also highlights his inability to grasp the deeper significance of their actions. Kenny, as always, remains silent but is visibly content, sharing in the camaraderie of the moment.

The episode concludes with a sense of closure for the boys, having embarked on a journey that tested their friendship and moral compass. They may not have changed the world, but they have made a difference in the life of one whale, and in doing so, they have grown as individuals. The screen fades to black, leaving the audience with a lingering sense of the complexities of freedom and the impact of individual actions.

In the episode "Free Willzyx" from season 9 of South Park, there is indeed a post-credit scene. After the main story concludes, the scene features a brief moment where the boys are seen at the aquarium. They are watching the whale, Willzyx, who is now free and swimming in the ocean. The scene captures the boys' excitement and joy as they witness Willzyx in his natural habitat, emphasizing the theme of freedom and the emotional connection they developed with the whale throughout the episode. This moment serves as a light-hearted conclusion, reinforcing the positive outcome of their efforts to liberate Willzyx.

The boys, particularly Stan and Kyle, are motivated by their compassion for Free Willzyx, a whale who is being held in captivity. They feel a strong sense of injustice regarding the treatment of the whale and are driven by a desire to help him regain his freedom.

Cartman exploits the situation for his own gain by convincing the boys that they need to raise money to help Free Willzyx. He uses their emotional investment to create a scheme that ultimately benefits him, showcasing his selfish and manipulative nature.

Mr. Mackey, the school counselor, becomes involved when the boys present their plan to help Free Willzyx. He initially supports their cause but later expresses concern about the legality and ethics of their actions, highlighting the adult perspective on the situation.

The boys devise a plan to transport Free Willzyx by using a large truck to sneak him out of the zoo. They face various challenges along the way, including evading zoo security and dealing with the logistics of moving a whale.

The relationship between Free Willzyx and the boys symbolizes their innocence and desire to do what is right. As they bond with the whale, they learn about empathy and the importance of standing up against injustice, which deepens their emotional connection to the cause.

"Free Willzyx" from South Park's season 9 is not considered family-friendly. The episode contains several potentially objectionable or upsetting elements, including:

1. Animal Cruelty Themes: The storyline revolves around the treatment of a whale, which may be distressing for viewers sensitive to animal welfare issues.
2. Mature Humor: The episode features crude humor and adult themes that may not be suitable for children.
3. Profanity: There are instances of strong language that could be inappropriate for younger audiences.
4. Dark Satire: The episode employs dark humor and satire that may be confusing or upsetting for sensitive viewers, particularly regarding serious topics like captivity and exploitation.
5. Violence: There are scenes that depict violence or aggressive behavior, which may be alarming for some viewers.

Overall, the content is aligned with South Park's signature style, which often includes controversial and provocative themes not suitable for children.