
With the space program attempting to travel to Mars, 21st century scientists were tasked with warming up the planet so that humans could survive on its surface. They came up with an efficient and cost-effective plan of sending cockroaches and mold to the surface so that the mold would absorb the sunlight and the insect corpses would serve as a food source for the mold. It is now the year 2577 and the first manned ship to Mars has landed on the planet and the six crew members are ready for their mission. But what they find are giant mutated humanoid cockroaches with incredible physical strength. The crew members are easily wiped out, but not before sending a transmission back to Earth. Now, humanity will send elite warriors to exterminate the mutated bugs and claim back Mars.

Twenty years have passed since the doomed Bugs 2 mission, and a strange new disease is ravaging Earth. To save his friend from the malady, Akari Hizamaru enters an underground tournament only to find himself pitted against a savage foe.

With the Annex 1 cruising toward Mars, an eerie mood pervades the crew as they are debriefed on their role in combating the lethal A.E. Virus. Moments before arrival, a deadly presence onboard thrusts the crew into a collision course with the unknown.

In the darkness of space, Annex 1 becomes a bloody backdrop for the terraformars' rampage. Akari and Michelle manage to push back before making a mad dash for the mutational serum, now almost completely destroyed.

Calm is fleeting for Captain Komachi and crew, who discover a bizarre stowaway on Mars. The confusion continues when an unlikely hero parries potential devastation from another terraformar ambush.

Oscillating between melancholy and rage, emotions run high for Marcos as his reminiscing fuels an attack that leaves his teammates awestruck.

An omen of things to come arrives with a shattering of glass as one grotesquely developed terraformar takes control of the Squad 2 crew and their escape vehicle.

One crash landing and two near-deaths later, Akari, Michelle, and the rest of Squad 2 are shell-shocked-but alive. A rare moment of peace, and a healthy dose of carnal repression, leads Akari and Alex into trouble.

Adolf, leader of Squad 5, maneuvers the escape vehicle toward the Annex 1 crash site, but is abruptly knocked off course by an unfathomable foe who sends the crew hurtling into a rocky canyon.

All eyes are on Adolf as the terraformars close in for the kill. An outpouring of fury and heartache from the past materializes as lethal electricity, but it can't last forever.

Before collapsing at Eva's feet, Adolf channels divine annihilation to strike down the terraformars. But his attackers' ingenious resuscitation precipitates yet another attack. Will an unprecedented attempt at survival eventually favor the roaches?

In the depths of the canyon, a new match begins. But this time, the stakes are higher; it's Mars versus planet Earth in a contest of the species. With Squad 1 fragmented, one of Earth's best featherweights must take on the reigning champion of Mars, a colossally armored beast.

During a precarious clash atop a terraformar's web, Captain Komachi is haunted by a soul from the past and is ready to put the grim incident from the Bugs 2 project behind him. Meanwhile, deep within the pyramid, Squad 3 makes an unexpected discovery of an inexplicable object from decades past.

Squad 1 is in dire straits, but luckily Akari and Michelle are there to drive back the threat from the crew's most terrifyingly elusive foe yet. When Squad 1 is joined by Squad 2, a breakdown from within the team threatens to divert what seem to be steps to victory.

2620 AD. Humanity tried a terraforming project on Mars, which lead to super evolved roaches, as well as the Alien Engine virus, which has a 100% death rate. To break through this nightmare, a crew that had undergone a special surgery has been sent to Mars. Hizamaru Akari and Michelle K. Davis lead crew members with special powers to try to resolve both of these issues.

No. 4 Division gets to the main ship, but finds they've walked into a trap. The Chinese division has betrayed them, and wants the two post-surgery humans as experimental samples. The Chinese have brought weapons, which they use to slaughter the Terraformars by the hundreds.

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The No. 1 and No. 2 divisions have walked into a trap set by the Chinese team. They manage to neutralize the Chinese' superior weaponry, but they still have a few tricks up their sleeve, and their transforming power is greater than it may appear!

Wounded by Liu's Fa Jin technique, Asimov is somehow able to counterattack and corner the general. As the battle between Squads descends into an all out battle royale, the sky fills with the shadow of an enemy the Earthlings had almost forgotten.

The Chinese division has revealed their ultimate weapon: a girl with an anthrax surgery base. Unless she's killed, there is no hope of defeating them and reclaiming Annex 1. Alexander goes in alone into the anthrax-covered spaceship to assassinate her.

Separated from the group, Michelle and Hizamaru are attacked by Terraformars using the powers of the other Mosaic operation subjects who died. Overwhelmed and outmatched, their only hope is to use a cunning plan to trick No. 4 division into destroying their foes for them.

Michelle and Hizamaru use their unique weapons to defeat the Terraformars who possess the powers of the former crew. Will their Ninja-vibro-blades and acceleration-boosted martial arts be enough to stand up against the superpowered Terraformars?

Michelle and Akari are kidnapped by Bao from No. 4 division. He tries to take them back to Annex 1, but to get there, he'll have to break through a horde of thousands of Terraformars. He decides to sacrifice Yaeko to get away. Will her non-combatant rank powers be enough to hold off the swarm?

The mighty rank 1, Joseph G. Newton, arrives to save Yaeko from the horde! He easily dispatches Bao and rescues Akari and Michelle. But will he be able to achieve his greatest objective... and win Michelle's heart?

The engineering team, led by a few lower-ranking combat soldiers, mounts a desperate assault on the bioweapon-infested Annex 1. The Terraformars attack at the same time, making for a disastrous 3-way battle.

The engineering team continues its strike on Annex 1, but the Terraformars have infiltrated the ship as well. With foes on all sides, both human and inhuman, will they be able to make their way to the control room and alert Earth to No. 4 Division's treachery?

The battle for the broadcast tower rages on as the civilian crew of No. 1 division infiltrates the control room. But the Terraformars are there too. If they make any noise the trained killers of No. 4 Division will hear them, so they're forced to continue their work in total silence as the killer cockroaches get closer.

The heroic sacrifice of the civilian crew allows No.1 and No. 2 division to temporarily take back control of the communications tower. But the last member of the crew passes out before she can tell Earth about No. 4 division's betrayal. Is all hope lost, or is there another way?