Godzilla is a 1954 Japanese toktsatsu science fiction film.thumb|300px|right
When a Japanese fishing boat is attacked by a flash of light near Odo Island, two rescue boats are sent, but they are destroyed, with only a few surviving. On Odo Island, a village elder blames their poor fishing on Godzilla and recalls that in earlier times native girls were sacrificed to appease the giant sea monster. Word gets out and a helicopter arrives on the island with curious, but skeptical, reporters. Frightened natives perform a nighttime ceremony to keep the monster away. However, that night, while the natives sleep, a storm arrives and Godzilla comes with it. Death and destruction ensue.
The next day, witnesses arrive in Tokyo. Archeologist Kyohei Yamane suggests that investigators be sent to the island. On arrival, Yamane finds giant radioactive footprints, and a trilobite. When an alarm sounds, the villagers arm themselves with sticks and run to the hills, only to find Godzilla is more than they can fight. After a quick skirmish, the villagers run for safety and Godzilla heads to the ocean.
Dr. Yamane returns to Tokyo to present his findings and concludes that Godzilla was created by a nuclear explosion. Some want to conceal that fact, fearing international repercussions. Others say the truth must be revealed. They prevail and Godzilla's origins are announced to the public. Ships are sent with depth charges to kill the monster. When they fail, Godzilla appears again, causing nationwide panic. Officials appeal to Dr. Yamane for some way to kill the monster, but Yamane wants him kept alive and studied.
Meanwhile, Emiko, Yamane's daughter, decides to break off her engagement to Yamane's colleague, Daisuke Serizawa, because of her love for Hideto Ogata, a salvage ship captain. Before she can do that, Serizawa tells her about his invention, the Oxygen Destroyer, which can kill all life in the sea. He gives a small demonstration, using a fish tank in the lab. She is sworn to secrecy and never gets a chance to break off the engagement.
That night Godzilla climbs from Tokyo Bay and attacks the city. Though the attack is over quickly, there is much death and destruction.
The next morning the army constructs a line of 40-meter electrical towers along the coast of Tokyo that will send 50,000 volts of electricity through Godzilla, should he appear again. Civilians are evacuated from the city and put into bomb shelters.
That night Godzilla does indeed attack again. He easily breaks through the electric fence, melting the wires with his atomic breath. A bombardment of shells from the army tanks has no effect. Godzilla continues his rampage until much of the city is destroyed and thousands of civilians are dead or wounded. Godzilla descends unscathed into Tokyo Bay, despite a squadron of fighter jets' last-ditch attack.
The next morning finds Tokyo in ruins. Hospitals overflow with victims, including some with radiation poisoning. Emiko witnesses the devastation and tells Ogata about Serizawa's secret Oxygen Destroyer. She hopes together they can persuade Serizawa to use it to stop Godzilla. When Serizawa refuses, Ogata and Serizawa fight and Ogata receives a minor head wound. As Emiko treats Ogata's wound, Serizawa apologizes, but he refuses to use the weapon on Godzilla, citing the public bedlam his weapon could cause. Then a newscast shows the devastation Godzilla has caused. Choirs of children are shown singing a hymn. Moved, Serizawa decides he will use the weapon only one time and then its secret must be destroyed for the good of humanity. He then burns all his papers and research. Emiko breaks down and cries when she sees this, as she understands that Serizawa is sacrificing his life's work to stop Godzilla.
A navy ship takes Ogata and Serizawa to plant the device in Tokyo Bay. They don diving gear and descend into the water, where they find Godzilla at rest. Ogata returns to the surface as Serizawa activates the device. Serizawa watches as Godzilla dies then cuts his own oxygen cord, sacrificing himself so his knowledge of the device cannot be used to harm mankind. A dying Godzilla surfaces, lets out a final roar, and sinks to the bottom, disintegrating.
Although the monster is gone, those aboard ship are still grim. They don't know if the death of Godzilla is the end or the beginning of an apocalyptic era. Godzilla's death has come at a terrible price and Dr. Yamane believes that if mankind continues to develop weapons of mass destruction, Godzilla may return.