The movie begins with a futuristic world in the year 2000 where Earth is overpopulated. A terraforming project is created to send humans to Mars, but first, they send different life forms, including cockroaches, to terraform the planet. The cockroaches evolve into powerful creatures called Earth Forcers.
The story follows a couple, Jim and his girlfriend, who are convicts recruited for a mission to Mars. They join a crew of other convicts, except for a young boxer named Gene, who is recruited due to his poverty.
Upon arrival on Mars, they discover that the cockroaches have become a threat to human life. The crew is attacked, and the captain reveals that the true mission is to exterminate the cockroaches. However, it is later revealed that the mission is actually an experiment to create mutant humans with superpowers to eliminate the cockroaches.
The crew members are injected with a serum that gives them insect powers, but excessive use of the power can be fatal. The crew fights against the cockroaches, but they are vastly outnumbered.
As the story unfolds, it is revealed that Doctor Honda, the mastermind behind the experiment, plans to use the mutant humans to create humanoid super insects for the Japanese army to dominate both Earth and Mars.
The crew members, including Jim, Gene, and a computer specialist named Ichiro, fight against the cockroaches and Doctor Honda's plans. Gene's girlfriend, who was thought to be dead, is revived and sacrifices herself to exterminate the creatures.
In the end, only two survivors, Jim and Ichiro, escape from Mars and return to Earth. They plan to reveal the truth about the terraforming project and Doctor Honda's plans. Jim also plans to avenge his beloved and his friend Gene, who died during the mission.
Here are the key facts extracted from the text:
1. The movie takes place in a futuristic world, specifically in Japan in the year 2000.
2. The Earth is facing overpopulation problems, leading to the creation of the Terraforming Project.
3. The project aims to send humans to Mars to make the planet habitable.
4. The first ship sent to Mars was lost, and the crew was presumed dead.
5. A new crew is sent to Mars, consisting of convicts who are promised a pardon and a large sum of money if they complete their mission.
6. The crew discovers that Mars is inhabited by giant cockroaches.
7. The cockroaches were sent to Mars as part of the Terraforming Project but evolved into powerful creatures.
8. The crew soon discovers that they are part of an experiment called the "Book Procedure" to create mutant humans.
9. The mutant humans are designed to have superpowers that can be activated with a compound.
10. The compound has a limited duration and can be fatal if used excessively.
11. The crew's mission is to exterminate the cockroaches, but they soon realize that they are being used as test subjects.
12. The true purpose of the mission is to obtain an "Earth Egg" to study its evolution and create humanoid super insects.
13. The crew members begin to develop their superpowers and fight against the cockroaches.
14. The battle between the crew and the cockroaches intensifies, and several crew members are killed.
15. The survivors manage to escape from Mars and return to Earth.
16. The movie ends with the two survivors vowing to expose the truth about the Terraforming Project and seeking revenge for their fallen comrades.