The story revolves around a group of people who were not connected to each other in any way other than by ill fate. These were people from different parts of India who had traveled to the US and now were boarding the ill-fated flights that crashed into the Twin Towers and Pentagon on 9/11. The story tells us about the horror of the hijack and some of the incidents that occurred on board during those horrific minutes. Some of the characters in the film die in the accident.
In a future post-apocalypse Earth in the year 2293, the human population is divided into the immortal "Eternals" and mortal "Brutals". The Brutals live in a wasteland, growing food for the Eternals, who live apart in "the Vortex", leading a luxurious but aimless existence on the grounds of a country estate. The connection between the two groups is through Brutal Exterminators, who kill and terrorize other "Brutals" at the orders of a huge flying stone head called Zardoz, which supplies them with weapons in exchange for the food they collect. Zed (Connery), a Brutal Exterminator, hides aboard Zardoz during one trip, temporarily "killing" its Eternal operator-creator Arthur Frayn (Niall Buggy).
Intelligent aliens who have been studying Earth for centuries decide to challenge mankind by sending in a 185-foot, laser-eyed monster called Zarkorr to wreak city-crushing havoc. Only one incredibly average young man, postal worker Tommy Ward (Rhys Pugh), can find the beast's weakness and save the planet with the help of a 6-inch-tall pixie (Torie Lynch), who says she is "a mental image projected into his brain" by the aliens. She explains that Zarkorr cannot be destroyed by weapons, but that the key to the monster's destruction lies within the monster itself. Tommy, chosen as an average human, is the one destined to fight Zarkorr, who is programmed to kill him. Tommy asks scientist Dr. Stephanie Martin (De'Prise Grossman) for advice about his mission, but everyone thinks he is crazy. He takes the scientist hostage, but manages to explain his predicament to one of the policemen, who believes him and helps him escape. Dr. Martin agrees to help him. Using computers belonging to a friend of hers, they establish that the monster, which is destroying city after city in the style of Godzilla, neither sleeps nor breathes. Going to the place where the monster first appeared, they come into possession of a strange metallic capsule that fell out of the sky at the time the monster arrived. It is believed to be unopenable, but it opens by itself for Tommy as he touches it. He uses the top of the capsule as a shield, reflecting Zarkorr's laser rays back at him, and the monster dissolves into a small glowing sphere flying into space. Tommy is taken to hospital to recover; a TV reporter congratulates him for saving the world, and he jokes he might run for president.
In 1956, Gabriella (Veronica Moriconi)—a girl with apparent psychic powers—is brought to the enormous house of Dr. Meyer (Cesare Barbetti) in Chartres, France. Meyer intends to conduct an experiment testing her abilities. He takes her into his basement, where the youngster abruptly falls to her knees and begins digging into the dirt. "This is where you're hiding, isn't it?" Meyer yells. He rushes upstairs for help from his assistants and leaves Gabriella by herself. She is attacked by something unseen and is taken to the hospital. In the basement, further digging reveals a rotted corpse, with a nearby wallet identifying the dead man as Paolo Zeder. Dr. Meyer realizes that the earth in which Zeder was buried was a 'K-Zone'.
In the post-apocalyptic year 2044, the population has been genetically altered to live in a constant state of happiness, but without sorrow, happiness dissipates, leaving only a feeling of never-ending paresthesia. Only pain can make people feel alive.
In 2003, Maya, a young U.S. Central Intelligence Agency officer, has spent her entire brief career, since graduating from college and being recruited for the agency, focused solely on gathering intelligence related to Osama bin Laden, leader of al-Qaeda, following the terrorist organization's attack on the United States in 2001. She is reassigned to the U.S. embassy in Pakistan to work with a fellow officer, Dan. During the first months of her assignment, Maya often accompanies Dan to a black site for his continuing interrogation of Ammar al-Baluchi, a detainee with suspected links to several of the hijackers in the September 11 attacks. Dan subjects the detainee to approved interrogation techniques, i.e., stress positions, hooding, subjection to deafening noise, sleep deprivation, waterboarding, and humiliation. After failing to get al-Baluchi to give up information on an attack in Saudi Arabia, he and Maya eventually trick Ammar into divulging that an old acquaintance, who is using the alias Abu Ahmed al-Kuwaiti, is working as a personal courier for bin Laden. Other detainees corroborate this, with some claiming Abu Ahmed delivers messages between bin Laden and a man known as Abu Faraj al-Libbi. In 2005, Abu Faraj is apprehended by the CIA and local police in Pakistan. Maya is allowed to interrogate him, but he continues to deny knowing a courier with such a name. Maya interprets this as an attempt by Faraj to conceal the importance of Abu Ahmed.
When a mysterious artifact is discovered, global catastrophes start to destroy civilization. A rogue scientist attempts to decipher the symbols on the artifact in an attempt to unlock its secrets and save humanity from certain destruction.
While transporting toxic chemicals, a pair of truckers strike a deer and lose one of their canisters. It rolls into a river, floats downstream, and splashes several beavers at their dam. Later, college students Mary, Zoe, and Jenn arrive at Mary's cousin's cabin near the dam. Although Zoe and Jenn are distraught that there is no cell phone coverage, Mary insists that they spend the next two days without interruptions from technology or boys. While swimming at the lake, the girls discover the beaver dam. When Jenn swims closer to see a demonic mutated zombie beaver, they are surprised by a bear. Smyth, a local hunter, scares off the bear and admonishes the girls to stay away from the beavers and dress more appropriately.
A group of scientists are working on a serum called Death One, which reanimates the dead. When Dr. Alan Holder (Robert Marius) and his assistant Norma experiment on a human corpse, the corpse becomes a zombie, prompting Dr. Holder to resign from the project. As he prepares to surrender the serum to waiting military officers, a small group of criminals ambush the center; all but one are killed, and the surviving criminal manages to abscond with Death One. During a chase, the container with the serum is shot out of his hand and breaks; as he tries to pick it back up, he accidentally touches the serum. He flees to the Sweet River Resort and settles in Room 4. General Morton (Mike Monty) promises Dr. Holder that he and his men will capture the criminal. By the time they catch up to him, however, he has already succumbed to the disease, but not before infecting a bellhop and killing a maid before finally cutting off his own hand in a failed attempt to stop the spread of the infection. General Morton orders the patrons and staff killed and buried in a mass grave, and condemns the resort; the criminal's remains are delivered to him and his right-hand men, Tracey (Bruno Mattei) and Cheney (Claudio Fragasso), and burned. As Dr. Holder and Norma fear, the ashes quickly infect the air, killing an entire flock of birds passing by.
The story starts when Husin is asked by few village boys on his way home to hang out with them during their guitar playing sessions. Husin decides to join them. Eventually they get spotted and is given a scolding by an elder named Pak Abu, who was on his way back home from the mosque after the Isyak prayers.
The United States is devastated by a mysterious phenomenon which reanimates recently deceased unburied human beings as flesh-eating zombies. Despite the best efforts by the U.S. government and local authorities to control the situation, society is beginning to collapse and the remaining survivors are given to chaos. Some rural communities and the military have been effective in fighting the zombies in open country, but cities are helpless and largely overrun. Confusion reigns at the WGON television studio in Philadelphia by the phenomenon's third week, where staff members Stephen Andrews and Francine Parker are planning to steal the station's traffic helicopter to escape the zombies. Meanwhile, police SWAT officer Roger DiMarco and his team raid an apartment building where the residents are defying the martial law of delivering their dead to National Guardsmen. Some residents fight back with handguns and rifles, and are killed by both the overzealous SWAT team and their own reanimated dead. During the raid, Roger meets Peter Washington, part of another SWAT team, and they partner up together. Roger tells Peter that his friend Stephen intends to take his network's helicopter, and suggests that Peter come with them. The matter is decided when they are informed of a group of zombies sheltered in the basement, which they execute with grim determination.
Researchers at a remote jungle island outpost discover the natives are practicing voodoo and black magic. After killing the local priest (James Sampson), a voodoo curse begins to raise the dead to feed on the living in retribution. The researchers on the island are killed by the newly risen zombies, except for Jenny (Candice Daly), the daughter of a scientist couple. She escapes, protected by an enchanted necklace charm given to her by her mother shortly before her death.
Fred Brown (Robert Vaughn), a soldier, returns to Louisiana from the Vietnam war to find his wife (Brigitte Paillet) in bed with another man, and kills them both and his parents (Ellis and Nona Paillet), only sparing his son. While he is cleaning his knife, a falcon attacks him and tears out his left eye and blinds him in the other. He ends up at a hospital where he says goodbye to the child before he is taken into foster care.
Archie Melville takes a job with his Uncle Verlin at the mortuary. When the local bullies die in a car crash, they are taken to the mortuary, where they become reanimated. The bullies, now zombies, become even nastier and begin to torment Archie and his friend Charly.
Wracked with guilt over the suicide of her bullied sister, young karate student Megumi accompanies four older friends on a trip into the woods: smart girl Aya, her druggie boyfriend Také, full-figured model Maki, and nerdy Naoi. Things start to go badly when Maki finds a parasitical worm inside a fish - and wolfs it down, in the hope that it will keep her skinny. Her stomach later feels horrible and she relieves herself in an outhouse. The parasitic worm she ate had apparently laid eggs in her stomach and came out of in her diarrhea attack. Soon after, they are attacked by a crowd of poop-covered undead who emerge from the outhouse toilet Maki used.