Here is a possible concise summary:
The film Terraformers is about a group of criminals who are sent to Mars to exterminate the cockroaches that were used to terraform the planet. However, they discover that the cockroaches have evolved into humanoid, intelligent and super-strong creatures that attack them. The criminals are injected with insect DNA that gives them mutations and abilities to fight back. They face many dangers and betrayals as they try to survive and escape from Mars.
Here are the key facts extracted from the text:
1. The film terraformers is about a mission to Mars where the crew members have to fight against mutated cockroaches that evolved from a terraforming project.
2. The main protagonist is Komachi, who joins the mission to save his girlfriend Na Na O from execution, but she is killed by a cockroach on Mars.
3. The mission is organized by Honda, who wants to study the evolution of the cockroaches and create an army of obedient creatures using the DNA of the crew members and insects.
4. The crew members are injected with an activator that gives them insect-like abilities and mutations, but also risks turning them into insects permanently.
5. The cockroaches are intelligent and can build pyramids and use weapons, and some of them have more advanced mutations than others.
6. Komachi and a few other survivors manage to escape from Mars on a ship, while sparing one of the cockroach twins who stops the other cockroaches from attacking them.
7. Komachi vows to return to Mars and expose Honda's crimes on Earth, while Honda is betrayed by a government spy Sakakibara who tries to kill him and steal his developments.