Godzilla, Mothra and King Ghidorah: Giant Monsters All-Out Attack (2001)

Admiral Taizo Tachibana is speaking to a group of JSDF soldiers about the greatest threat they have ever faced: Godzilla. In 1954, Godzilla appeared and laid waste to Tokyo, and was later finally killed by the JSDF. Tachibana warns that even though the creature was successfully defeated, the JSDF need to be prepared. Recently, a giant monster similar to Godzilla attacked New York City, and ever since then sightings of giant monsters around the globe have skyrocketed. Tachibana dismisses the troops, and is informed by another officer that an American nuclear submarine has disappeared in the waters off Guam. The JSDF deploys the research submersible Satsuma to search for the sub. The Satsuma finds the sub's wreckage, with what appear to be huge claw marks in its hull. Suddenly, a violent wave causes the Satsuma 's sister craft to crash into a rock and explode. The Satsuma 's operator then catches a glimpse of huge glowing dorsal fins passing behind nearby rocks.

Meanwhile, Yuri Tachibana, the Admiral's daughter, is filming a fake documentary about a monster that supposedly lives near Mount Myoko. Yuri and her film crew are approached by the mayor of a local village, who tells them to stop filming immediately. Yuri tries to convince the man that the documentary could attract publicity to the village, telling him to imagine if Godzilla appeared in the village. Suddenly, a small earthquake strikes the area, which is enough to sway the mayor to allow filming to continue. Later, Yuri is at a restaurant with her coworkers, where she laments the fact that as a woman she feels she isn't allowed to pursue the stories she wants. One of Yuri's friends, Mitsuaki Takeda, arrives at the restaurant and tells Yuri about a legend involving three guardian monsters that defended Japan in ancient times. Sometime later, Takeda brings Yuri, now extremely drunk, back to her and her father's apartment. Takeda is greeted at the door by Admiral Tachibana, who apologizes for his daughter's behavior and brings her inside. Back at Mt. Myoko, the village mayor is sitting in a car with his mistress, telling her about the publicity the documentary will bring to their village. They are interrupted when a group of motorcyclists arrive and circle the car. The bikers damage some nearby property, including a small shrine, and then drive away. The bikers drive through a tunnel, which suddenly collapses and buries them all alive. A truck driver witnesses the event, and sees the head of a huge monster inside the tunnel. The next morning, the JSDF arrive and use D-03 Missiles to try and dig the bodies from the rubble. Investigators question the truck driver about the incident, and he claims that it was caused by Godzilla. Another incident occurs at Lake Ikeda, where a group of teenagers on a road trip have robbed a nearby convenience store and set up camp on the lake shore, in the process destroying another shrine. A few of the hooligans try to take a dog out into the lake in order to drown it, but their boats are overturned and they are all pulled underwater. A huge brown larva then surfaces from the lake. In the morning, a huge cocoon has appeared on the lake's surface, while the teenagers' bodies are trapped in a smaller cocoon.

Yuri, Takeda and another coworker visit a police station in the area, where a strange old man has been detained for defacing shrines. Yuri meets with the man, who claims that Godzilla will soon return to seek horrible vengeance against Japan for all of the atrocities committed by the nation during World War II. He states that no weapons can stop Godzilla, but if the three Guardian Monsters are awakened, then maybe together they can defeat him. In the Bonin Islands, Godzilla comes ashore during a typhoon and causes severe property damage. The JSDF is alerted to the incident, and immediately begins searching the waters around Japan for Godzilla. Yuri and Takeda visit Admiral Tachibana to tell him about the Guardian Monsters, but he dismisses the story. Tachibana then recalls his childhood, when he was present as Godzilla raided Tokyo in 1954. Tachibana lost both of his parents in the attack, and is still haunted by the memories of Godzilla and the cries of the monster's victims. In the Aokigahara forest near Mount Fuji, a suicidal businessman tries to hang himself from a tree with his tie. The man stands atop a fallen shrine, only for the ground beneath him to collapse and cause him to fall into a cavern. Inside he sees a giant three-headed dragon seemingly frozen in ice. The man promptly travels to the police station to tell of what he saw, but the police don't believe him. Just then, an earthquake strikes, and the monster from Mt. Myoko surfaces. The creature frees the mysterious old man from the police station, and begins wandering through the countryside. Concurrently, Godzilla surfaces from Yaizu harbor and comes ashore. Godzilla rampages through a nearby town, and uses his atomic breath to obliterate a crowd of civilians. The JSDF is initially unable to tell which monster is Godzilla, but Yuri and Takeda identify the monster from Mt. Myoko as Baragon, one of the three Guardian Monsters. They determine that Baragon is going to try and fight Godzilla. Eventually, both monsters converge in a forested area and begin fighting. Baragon tries to outmaneuver Godzilla by burrowing underneath him, but Godzilla gains the upper hand with his brute strength. Godzilla begins stomping Baragon into the ground, then blasts him with his atomic breath when he tries to flee. Godzilla blasts Baragon a second time, causing the monster to explode. Godzilla then continues his march across Japan, heading straight for Tokyo once again.

The JSDF tries unsuccessfully to stop Godzilla with fighter jets, as their weapons have no effect against the creature, and they are promptly destroyed by his atomic breath. When Tachibana asks how the JSDF was able to kill Godzilla in 1954, a superior informs him that Godzilla was actually killed by an experimental chemical weapon, whose inventor has since died. The government chose to cover up the truth and have the JSDF claim credit for the monster's defeat, so as to reassure the public. Yuri takes a bicycle and follows Godzilla, videotaping him from a safe distance. As Godzilla approaches Yokohama, the cocoon on Lake Ikeda splits open and the imago form of Mothra, another Guardian Monster, emerges. The old man travels to the cavern in Aokigahara and awakens the final Guardian Monster, Ghidorah, who travels to Yokohama as well. The JSDF places battleships in Tokyo Bay and sets up a defense line in Yokohama in preparation for Godzilla's arrival. When Godzilla arrives, he is attacked by Mothra, who fires poisonous stingers into his face. Godzilla fires his atomic breath at the giant insect, but Mothra is able to evade it. One blast of Godzilla's atomic breath misses Mothra and strikes the Yokohama Landmark Tower, killing the soldiers stationed inside. Mothra attacks Godzilla from behind, landing on his head and scratching his face. Ghidorah then arrives in the city and enters the battle, biting Godzilla and discharging electricity through his bite. Godzilla is able to overpower both monsters, biting down on Ghidorah's neck and then slamming him onto a building, and blasting Mothra away with his atomic breath. As Godzilla prepares to finish Ghidorah with his atomic breath, Mothra flies into the way and absorbs the blast, sending her flying several blocks away. His enemies subdued, Godzilla turns his attention to the JSDF, and promptly wipes their forces out with his atomic breath. As Godzilla prepares to destroy the battleship on which Admiral Tachibana is, Mothra tries to attack him from behind, only for Godzilla to turn around and completely destroy her with his atomic breath. However, Mothra's energy flows into the unconscious Ghidorah, reviving him as the Thousand-Year-Old Dragon, King Ghidorah. King Ghidorah takes flight, surrounded by a golden shield of energy. Godzilla fires his atomic breath at King Ghidorah, but the dragon's shield deflects it. King Ghidorah then releases a ball of energy at Godzilla, blasting him out of the city and into the bay.

As King Ghidorah battles Godzilla, Admiral Tachibana and Commander Yutaka Hirose dive into the bay in an attempt to fire D-03 Missiles at Godzilla. Yuri reunites with Takeda and the two of them go onto the Yokohama Bay Bridge to film the battle. Commander Hirose fires a missile from his ship, but Godzilla gets out of the way. The missile hits King Ghidorah instead, knocking him out. A stray blast of Godzilla's atomic breath destroys the bridge, sending Yuri and Takeda falling into the bay. An ancient stone falls out of Yuri's pocket, and re-energizes King Ghidorah, who flies to the surface. When Godzilla surfaces, King Ghidorah begins blasting him with gravity beams fired from his mouths. After withstanding several hits, Godzilla absorbs the energy from King Ghidorah's gravity beams and combines it with his atomic breath, then destroys King Ghidorah with a spiral-wrapped atomic beam. The spirits of all three Guardian Monsters materialize in the sky, then flow into Godzilla, causing him to sink underwater. While underwater, Godzilla swallows the Satsuma, with Tachibana still inside. Tachibana is knocked unconscious and the sub is damaged, but he regains consciousness after seeing a vision of Yuri. Tachibana then fires a D-03 Missile into a wound on Godzilla's chest inflicted by King Ghidorah from the inside. Godzilla surfaces and prepares to fire his atomic breath at Yuri and Takeda, but the missile drills through his chest wound and explodes, expanding the wound and causing Godzilla to roar in agony. Godzilla promptly charges his atomic breath again, but when he tries to fire it it instead fires from the wound on his chest. Godzilla tries again, and the same thing happens, causing him to fall back underwater. As Godzilla sinks to the sea floor, the Satsuma manages to escape from the monster's body. Godzilla charges his atomic breath again underwater and tries to fire it at the Satsuma, but the pressure from his previous attempts builds to critical levels and he explodes. The JSDF celebrates as Godzilla completely disappears from all tracking systems. After learning that Yuri is okay, her boss Haruki Kadokura decides to try and arrange an interview with the old man Yuri interviewed, but a coworker tells him that the man, Hirotoshi Isayama, has been dead for almost 50 years, and has disappeared completely from the interview tape. The Satsuma surfaces, and Tachibana exits the craft. As Yuri runs to embrace her father, he warns her to stay back, as he hasn't checked the radiation levels. Yuri salutes her father, who looks out at the sea and tells Yuri not to thank him, but his comrades and the three Guardian Monsters.

Meanwhile, on the sea floor, Godzilla's disembodied heart begins to beat continuously.