Somewhere in space, the dawn of the frontiers of the UN Security Council is constantly floating in space. The ship is a captain of low-temperature freezing and A.I. Cortana. The old Cortana began to groan and began to talk to the principal. It was completely clear that the principal could not hear her voice.

Cortana: Chieftain? Can you hear me?

Cortana's hologram appears on holotank. She appears in the position of the fetus.

Cortana: When I was born seven years ago, I already had all the human knowledge.

She looked at the Master Chief's cryotube.

Cortana: It took me almost two hours to process and understand all of this information. But I am not sure which memories are mine, even what is true and what is true. Since then, I have found more information. I have lived for a long time for A.I. But now, after seven years, I finally understood your role, your position in the universe and how you came here. Human evolution, invention, desire... and the eternal war. Forever war. The oldest and most enduring practice of mankind.

The scene was transferred to a planet where the forerunner lived.

Cortana: A hundred thousand years ago, there was a great civilization in this universe. Like all civilizations, they face a sudden and terrible transformation. The primary threat from the outside. What they didn't think of. Never ready.

An unidentified ship floats on the planet of Forerunner. Large pieces of debris fall into the atmosphere.

Cortana: They simply call it "flood." Unstoppable power. Unstoppable thirst.

Law enforcement officers and sentinels flew to the crater of one of the pieces. The tentacles passed by the crater and spread in the city of Forerunner.

Cortana: It swallowed everything that was touched. At first, their skills, their courage seems to prevail.

The sentinels moved a lot to destroy the flood, but the various forms of the flood spread too fast.

Cortana: But they waited too long to see the threat and join the battle. The flood is too far away.

The flood form began to infect the living forerunners. The flood began to form biomass in all areas of the pioneering civilization. The flood eventually formed a pure form.

Cortana: It feeds on smart life and becomes smarter in the process of doing so. The flood is unique. It uses its own power to deal with them.

The flood occupied the entire planet. In a library-like structure, the Trailer Warrior studied a form of infection.

Cortana: They are... the first movers.

The forerunner activates their battleships and puts them into orbit.

Cortana: The first mover is a smart, highly intelligent, noble person. They are brave enough to face their opponents in peace with their faith in justice. They tried to disinfect it.

The Forerunner fleet gathered forces on the flood-affected ships. On the surface, the larger, more powerful sentry fleet is activated.

Cortana: I can only think of some of them. Fill the gap.

Sentinel use their advanced weapons to destroy flood biomass. Ships in orbit use their cluster weapons to destroy flooded ships. The scene returned to the ground where the Forerunner infantry troop entered the flood. Using advanced hand-held beam weapons, soldiers destroyed several buildings before being attacked by infected forms and flood biomass. At first, the first movers responded, but in the end, they were overwhelmed.

Cortana: But this is an impossible battle. Failure to achieve is inevitable, and the first mover decides to destroy everything.

Floods form biomass on all objects, slowly accumulating and slowly reaching critical mass. The flood eventually formed a grave.

Cortana: The irony is that they do this to protect their lives. Create an unborn future for you and know that you can't survive.

The flood-controlled Forerunner vessel was lifted off to allow it to spread through the Milky Way.

Cortana: They desperately tried to make sure they were the last victims, and they created a secret weapon of terrible power.

The scene was moved outside the infected galaxy, the farthest outpost to Forerunner: the Ark. Around the ark, the forerunners made their last weapon, seven Halo rings, and moved through the Ark portal.

Cortana: It is called 'Halo'. A series of weapons are scattered throughout the Milky Way. Its impact will spread throughout the known space. Destroy the flood. Every thoughtful creature in the galaxy.

The ring appears on the tracks around Eayn, Doisac, Sanghelios and Earth. The emergence of aura in the sky has sparked interest in the native species of all these planets. Forerunner Keyship landed on the Ark Portal's Earth's end point and was watched by humans.

Cortana: You see, the floods live with perceptive species. The device will destroy the infection and its food supply. The other thousand plans have failed after trying. This is the last resort. Halo.

Forerunners activates the Halo ring, which pulses through the stars. The flood was destroyed along with other species in the Milky Way. Non-organic creatures were not harmed, leaving Forerunner's sentry fleet unharmed.

Cortana: Finally, it is over in an instant. Every intelligent life form left in the galaxy has been eliminated.

The Halo Ring's pulse lingered for a while, then the ring was dormant and undisturbed for the next 100,000 years.

Cortana: But winning from the ashes of obvious defeat: victory.

You can see the Forerunner Keyship. Above it, various panels display human figures.

Cortana: Forerunners has cataloged the Halo effect, storing and collecting demographic samples. DNA, embryos, and even living specimens. In order to refill. Restore the galaxy.

Sentinel is considered to manage countless samples. I saw that five keys were lifted and I was ready to re-implant the Milky Way with my life.

Cortana: Once the galaxy is cleared of floods and threatened to disinfect, they repopulate the world. Rebuild what they dismantled and replant their lives.

Keychains land in various worlds. Sentinel uses DNA samples to regenerate species. Unggoy returns to Balaho, Sangheili returns to Sanghelios, and of course humans to Earth.

Cortana: But the Forerunners themselves have disappeared forever. This kind of destruction, this war is the gift they gave you and their sacrifice. They let you recycle your world and rebuild it with your own hands. By sacrificing yourself. eternal.

See a forerunner is blocking its armor.

Cortana: Life seems to have finally found peace.