In
the last summer of the 20th century, giant monsters began appearing all over
the world and wreaking havoc. Eventually, a powerful creature named Godzilla
appeared which destroyed humans and monsters alike. Two species of aliens, the
Exif and the Bilusaludo, eventually arrived with the former attempting to
convert humanity to their religion and the latter seeking to emigrate to Earth
with promises to defeat Godzilla with Mechagodzilla, should humanity accept
them. However, the Bilusaludo were unable to activate Mechagodzilla, which
forced the aliens and humanity to abandon Earth and emigrate to Tau Ceti e.
20
years later and 11.9 light years away, Captain Haruo Sakaki locks himself in a
shuttle, threatening to bomb the area unless the ship leaves Planet Tau-e and
abandons the emigration project. Haruo believes the planet is uninhabitable and
the emigration crew only consists of the elderly, including his grandfather,
because he believes the ship's committee are trying to reduce the population
due to limited resources. Haruo fails and is then arrested and thrown in a cell
where he witnesses the emigration shuttle exploding upon entering the planet.
Metphies,
an Exif priest, visits Haruo, where he hands him classified data regarding
Godzilla. Haruo then anonymously publishes an essay detailing Godzilla's weak
points, which convinces the central committee to return to Earth after
concluding that finding another habitable planet seems unlikely. Upon returning
to Earth, the ship sends recon drones to scout the Earth but reveal that
Godzilla is still alive after all these years.
Metphies
explains to the committee that they cannot co-exist with Godzilla and suggests
killing it. He also explains that the anonymous essay was the result of a
thorough investigation and is sound, promising to reveal the author under the
condition that Haruo is released.
Haruo
is then released on bail and explains to the committee that a certain unknown
organ on Godzilla's body can emit a high frequency electromagnetic pulse that
generates an asymmetrical permeable shield. Haruo proposes shoving an EMP probe
within the cracked organ before it regenerates so Godzilla can implode. However,
Haruo stresses that close quarters combat would be needed for accurately
coordinated attacks in order to find its weak organ, as well as 600 people.
The
committee reluctantly accepts and upon landing two battalions on Earth,
discovering that 20,000 years have passed and that Godzilla's presence has
radically altered Earth's biosphere. They are attacked by a group of flying
creatures and Leland, the company's commander, orders a retreat but Metphies
stresses that they would need to rendezvous with Companies D and E through a
pass where Godzilla frequents.
However,
once the group mobilizes, they encounter Godzilla. Haruo proceeds with the
original plan on his own and attacks Godzilla. Leland manages to provoke
Godzilla to use its atomic breath, but at the cost of his life. Leland's
actions reveal that Godzilla's weak point is its dorsal fins. Command then
falls to Metphies, who promotes Haruo to commander. In a speech, Haruo
convinces the remaining survivors to continue with the plan and defeat
Godzilla.
The
group then attacks Godzilla and manage to trap it within a terrain. EMP probes
are then drilled into Godzilla's dorsal fins which causes it to implode. Martin
Lazzari, the group's environmental biologist, theorizes that this Godzilla may
be different from the one that drove humanity away, believing it to be an
offspring. Subsequently, the original Godzilla, which has grown several times
larger, surfaces from beneath a nearby mountain and destroys the remaining
crew. Trapped beneath rubble, Haruo watches Godzilla leave, vowing to kill it.
In
a post-credits scene, Haruo wakes up in a secluded area, finding a local girl
next to him.
