In the ending of "Peninsula," the main character, Jung-seok, and his group manage to escape the chaos of the zombie-infested city. They confront the mercenaries and ultimately find a way to rescue the children they had been trying to save. The film concludes with a sense of hope as they drive away from the devastation, but the future remains uncertain.

As the climax of "Peninsula" unfolds, we find Jung-seok, who has been haunted by his past experiences in the zombie apocalypse, now facing a new set of challenges. After a series of intense confrontations with the mercenaries, he and his group, which includes the brave siblings, Min-jung and her brother, are determined to rescue the children they had discovered earlier.

Scene by scene, the tension escalates. Jung-seok and his team, having infiltrated the mercenaries' stronghold, engage in a fierce battle. The mercenaries, led by the ruthless Captain Seo, are relentless, and the stakes are high. Jung-seok's internal conflict is palpable; he grapples with his desire to protect the innocent while confronting his own fears and regrets from the past.

As the fight intensifies, Jung-seok showcases his leadership and combat skills, rallying his team to push through the overwhelming odds. The emotional weight of the situation is heavy, as he reflects on the loss of his family and the guilt that has plagued him since the outbreak. Each character's motivations are laid bare; Min-jung fights fiercely to protect her brother, while the other members of the group are driven by their own personal stakes in the fight for survival.

In a pivotal moment, Jung-seok faces off against Captain Seo. The confrontation is brutal, filled with raw emotion as Jung-seok channels his pain into a desperate fight for survival. The scene is charged with tension, showcasing the desperation of both men--one fighting for redemption and the other for power.

After a harrowing struggle, Jung-seok manages to defeat Captain Seo, but not without significant cost. The group successfully rescues the children, and as they make their escape, the emotional toll of their journey weighs heavily on them. They drive through the desolate landscape, the remnants of the city in ruins around them, symbolizing the loss and destruction that the outbreak has caused.

As they reach a safe zone, the film closes on a note of cautious optimism. Jung-seok, now transformed by his experiences, looks out at the horizon, contemplating the uncertain future ahead. The fate of each character is left somewhat open-ended; while they have survived the immediate threat, the world remains a dangerous place, and their journey is far from over. Jung-seok, Min-jung, and her brother have forged a bond through their trials, hinting at the possibility of hope and resilience in the face of despair.

In the movie "Peninsula," there is indeed a post-credit scene that adds a layer of intrigue to the story. After the credits roll, the scene opens with a view of the desolate landscape of the Korean Peninsula, still ravaged by the aftermath of the zombie outbreak.

The camera pans to a group of survivors who are scavenging for supplies in a dilapidated building. Among them is a character who appears to be a leader, directing the others with a sense of urgency and determination. As they search through the debris, they come across a hidden stash of supplies, which brings a moment of hope and relief to the group.

However, the atmosphere quickly shifts when they hear distant growls and the unmistakable sounds of zombies approaching. The tension escalates as the survivors realize they are not alone. The scene ends on a cliffhanger, with the group preparing to defend themselves against the impending threat, leaving viewers with a sense of dread and anticipation for what might come next.

This post-credit scene serves to reinforce the ongoing struggle for survival in a world overrun by the undead, hinting at the possibility of further challenges and adventures in this bleak, post-apocalyptic setting.

Jung-seok is driven by a mix of desperation and guilt. After escaping the initial outbreak, he lives in a refugee camp in Hong Kong, haunted by his past and the loss of his family. When he learns about a potential cash reward for retrieving a truck filled with money from the abandoned city, he sees it as a chance to secure a better future for himself and his sister, who is also struggling in the camp.

Initially, Jung-seok is cold and detached, focused solely on his mission. However, as he interacts with the family--particularly the young girl, Min-jung--he begins to feel a sense of responsibility and connection. Their shared struggles against the zombies and the harsh realities of their world lead him to reconsider his priorities, ultimately making him more protective and selfless.

Captain Seo serves as a key antagonist in the film. He leads a group of mercenaries who are also searching for the truck. His ruthless nature and willingness to sacrifice others for his own gain create tension and conflict with Jung-seok. Seo's character embodies the darker side of humanity in a post-apocalyptic world, contrasting with Jung-seok's evolving sense of morality.

Jung-seok encounters numerous challenges, including hordes of zombies, hostile survivors, and the treacherous environment of the city itself. He must use his combat skills and quick thinking to survive ambushes and navigate through dangerous areas. Additionally, the emotional toll of witnessing the suffering of others weighs heavily on him, complicating his mission.

Min-jung represents innocence and hope amidst chaos. Her resilience and determination to survive, despite the horrors around her, highlight the instinctual drive to protect loved ones. As Jung-seok grows closer to her, her character serves as a catalyst for his transformation, pushing him to confront his own fears and ultimately choose to fight for a future rather than just survival.

"Peninsula," the 2020 sequel to "Train to Busan," is not considered family-friendly due to its intense themes and graphic content. Here are some potentially objectionable or upsetting aspects that may affect children or sensitive viewers:

1. Violence and Gore: The film features numerous scenes of violence, including graphic depictions of zombie attacks and human-on-human violence, which can be quite disturbing.

2. Death and Loss: Characters experience significant loss and trauma, leading to emotional distress. The portrayal of grief and survival in a post-apocalyptic world can be heavy and unsettling.

3. Intense Action Sequences: High-stakes chase scenes and confrontations create a tense atmosphere, which may be frightening for younger viewers.

4. Themes of Despair and Hopelessness: The overarching themes of survival in a world overrun by zombies can evoke feelings of hopelessness and fear, which may be distressing.

5. Mature Language: The dialogue includes strong language that may not be suitable for children.

Overall, the film's dark tone and graphic content make it more appropriate for mature audiences.