The film opens in an alternate 1985, where the world is on the brink of nuclear war. The story begins with the murder of Edward Morgan Blake, known as The Comedian, who is thrown out of a window. Rorschach, a masked vigilante, investigates the murder and discovers that Blake was The Comedian, a former member of the Minutemen and later the Watchmen. Rorschach visits the home of Dan Dreiberg, also known as Nite Owl, to warn him that someone is targeting former heroes. Rorschach then visits Dr. Manhattan, a superhuman with god-like powers, who is living on Mars. Rorschach's warning prompts Dr. Manhattan to return to Earth.

Flashbacks reveal the history of the Watchmen, including their formation and the events leading to their disbandment. The film shows the complex relationships between the characters, including the romantic tension between Dr. Manhattan and Laurie Juspeczyk, also known as Silk Spectre. Laurie is disillusioned with Dr. Manhattan's detachment and seeks comfort from Dan. Meanwhile, Rorschach continues his investigation, uncovering a conspiracy that leads him to believe that someone is trying to eliminate former heroes.

Rorschach and Nite Owl team up to investigate further. They break into a former villain's lair, where they find evidence of a plot against them. They are attacked by a group of thugs, and a fight ensues. Rorschach and Nite Owl manage to defeat the attackers, showcasing their combat skills. They discover that several former heroes have been killed, and Rorschach becomes increasingly paranoid about the looming threat.

As tensions rise, Dr. Manhattan is interviewed on television, where he is accused of causing cancer in those around him. This leads to a public backlash against him, and he decides to isolate himself on Mars. Laurie confronts him about his indifference to humanity, and after a heated argument, she leaves him. Rorschach and Nite Owl continue their investigation, leading them to the identity of the killer, which they believe to be Ozymandias, the smartest man in the world.

The narrative shifts to Ozymandias, who is revealed to be orchestrating a plan to unite humanity against a common enemy. He believes that by creating a catastrophic event, he can prevent nuclear war. Ozymandias gathers the remaining Watchmen, including Dr. Manhattan and Laurie, to confront them about their past and his vision for the future. He reveals his plan to create a fake alien threat that will kill millions in New York City, thus forcing the world powers to unite against this new enemy.

Rorschach and Nite Owl discover Ozymandias's plan and rush to stop him. They infiltrate his Antarctic base, where they confront him. A fight breaks out, and Rorschach and Nite Owl struggle against Ozymandias's superior combat skills. During the confrontation, Dr. Manhattan arrives, and Ozymandias reveals his plan to him. Dr. Manhattan is initially conflicted but ultimately decides to let the plan unfold, believing it to be for the greater good.

Rorschach, however, cannot accept the moral implications of Ozymandias's actions. He insists on revealing the truth to the world, believing that humanity deserves to know what really happened. In a tense moment, Dr. Manhattan intervenes and kills Rorschach to prevent him from exposing the truth. With Rorschach dead, Ozymandias's plan is set in motion, and a giant squid-like creature is teleported into New York City, causing mass destruction and chaos.

The world reacts to the catastrophe, and the nations come together to address the threat. The film concludes with Dr. Manhattan leaving Earth, stating that he will create life elsewhere. Laurie and Dan are left to navigate their new reality, while Ozymandias reflects on the success of his plan. The final scene shows a newspaper with Rorschach's journal, hinting that the truth may still come to light, but the world has united in the face of the new threat.

At the end of the movie "Watchmen," Ozymandias executes his plan to unite humanity against a common enemy, resulting in the deaths of millions in New York City. Rorschach refuses to compromise and is killed by Dr. Manhattan. The remaining characters, including Nite Owl, Silk Spectre, and Dr. Manhattan, grapple with the moral implications of Ozymandias's actions. The film concludes with Dr. Manhattan leaving Earth, and Rorschach's journal is left behind, hinting at the potential for future conflict.

In a more detailed narrative, the climax of "Watchmen" unfolds as Ozymandias, also known as Adrian Veidt, reveals his grand scheme to the remaining heroes: Nite Owl (Dan Dreiberg), Silk Spectre (Laurie Juspeczyk), and Dr. Manhattan (Jon Osterman). He has orchestrated a catastrophic event, creating a fake alien creature that detonated in New York City, killing millions. His intention is to unite the world against this fabricated threat, thereby preventing nuclear war.

As the heroes process this revelation, they are horrified by the scale of the destruction and the moral implications of Ozymandias's actions. Nite Owl and Silk Spectre are particularly conflicted, as they had fought for justice and the preservation of life. They realize that Ozymandias has sacrificed countless lives for what he believes is the greater good.

Meanwhile, Rorschach, who has always held a black-and-white view of morality, refuses to accept Ozymandias's justification for the mass murder. He believes that the truth must be revealed, regardless of the consequences. In a tense confrontation, Rorschach insists that they cannot allow the world to live under a lie. He prepares to leave to expose Ozymandias's plan to the public.

In a desperate attempt to silence Rorschach, Dr. Manhattan intervenes. He understands the potential for chaos if the truth comes out, and he knows that revealing Ozymandias's actions could lead to global conflict. As Rorschach continues to insist on his principles, Dr. Manhattan makes the painful decision to kill him, vaporizing him with a blast of energy. Rorschach's last words, "None of you seem to understand. I'm not locked in here with you. You're locked in here with me," echo in the air, emphasizing his unwavering commitment to his beliefs.

After Rorschach's death, Nite Owl and Silk Spectre are left to grapple with the aftermath. They realize that Ozymandias's plan has succeeded in uniting the world, but at an unimaginable cost. They are left with a sense of loss and betrayal, questioning the morality of their actions and the future of humanity.

Dr. Manhattan, having witnessed the consequences of Ozymandias's actions and the complexities of human nature, decides to leave Earth. He tells Laurie that he is going to explore the universe, seeking understanding beyond the confines of human existence. As he departs, he expresses a sense of detachment from humanity, having come to terms with the fact that he cannot change the fundamental nature of people.

The film concludes with a poignant moment as Nite Owl and Silk Spectre share a quiet moment together, reflecting on their experiences and the world they inhabit. The final scene shows Rorschach's journal being discovered by a newspaper editor, hinting at the possibility of the truth coming to light and the potential for future conflict. The screen fades to black, leaving the audience with a sense of unresolved tension and the complexities of morality in a flawed world.

In the movie "Watchmen," produced in 2009, there is no traditional post-credit scene. However, there is a sequence that plays during the credits. This sequence features a series of animated visuals that depict the backstory of the character known as the Black Freighter, a pirate ship that appears in the comic series. The animation serves to enhance the themes of the film and provides additional context to the world of "Watchmen." The visuals are dark and stylized, reflecting the tone of the film, and they unfold alongside the credits, creating a haunting atmosphere as the story of the Black Freighter parallels the main narrative of the Watchmen characters.

Dr. Manhattan possesses god-like powers, including the ability to manipulate matter at a molecular level, teleportation, and precognition. His powers create a rift between him and humanity, as he becomes increasingly detached from human emotions and concerns. This detachment plays a crucial role in the unfolding events, particularly in how he responds to the impending nuclear threat.

Rorschach is driven by a strict moral code and a black-and-white view of justice. He believes in exposing the truth, no matter the consequences, and is relentless in his pursuit of what he perceives as justice. His journal entries and interactions with other characters reveal his deep-seated belief that humanity is fundamentally flawed, which shapes his decisions and ultimately leads to his tragic fate.

The Comedian's backstory reveals his complex and often brutal nature, showcasing his involvement in significant historical events and his cynical worldview. His violent actions and lack of empathy highlight the darker aspects of heroism and set the stage for the moral dilemmas faced by the other characters. His death serves as the catalyst for the investigation that brings the remaining heroes together.

Silk Spectre serves as a bridge between the older generation of heroes and the new. Her relationships with both Dr. Manhattan and Nite Owl reveal the personal struggles and emotional conflicts within the group. She grapples with her identity as a hero and the legacy of her mother, which adds depth to her character and influences the group's dynamics as they confront their past.

Ozymandias's ultimate plan involves orchestrating a catastrophic event that would unite humanity against a common enemy, thereby preventing nuclear war. His actions, while intended to save humanity, raise ethical questions about the cost of such a plan. The revelation of his scheme forces the other characters to confront their own beliefs about morality, sacrifice, and the greater good, leading to a climactic confrontation.

"Watchmen," produced in 2009, contains several scenes and elements that may not be suitable for children or sensitive viewers. Here are some potentially objectionable aspects:

1. Graphic Violence: The film features intense and graphic violence, including brutal fight scenes, bloodshed, and depictions of death.

2. Sexual Content: There are scenes that include nudity and sexual situations, which may be inappropriate for younger audiences.

3. Strong Language: The dialogue includes frequent use of strong profanity and harsh language.

4. Dark Themes: The film explores heavy themes such as existentialism, morality, and the consequences of vigilantism, which may be unsettling for some viewers.

5. Disturbing Imagery: There are scenes that depict graphic and disturbing imagery, including the aftermath of violence and the impact of war.

6. Substance Abuse: Characters are shown using drugs and alcohol, which may not be suitable for younger viewers.

These elements contribute to the film's mature rating and may not be appropriate for a family-friendly viewing experience.