Origins

Origins is one of the seven short films comprising the anime adaptation of the Halo universe, Halo Legends. Origins is an expansive history of the 100,000 year long franchise timeline, comprised of two parts. The story is told through the eyes of Cortana and the episode begins after the events of Halo 3.

Part 1
As Cortana watches over John-117, currently in cryo hibernation, she begins to experience the effects of rampancy, unable to key together who she is with the massive input of information in her databanks. She then begins recounting the history of the galaxy.

Over 100,000 years ago, there was once a great civilization called the Forerunners. However, their empire was invaded by a parasite called the Flood. Initially, the Forerunners treated the Flood as an infestation, until it was too late. The more Forerunners assimilated by the Flood, the more intelligent the Flood became. Soon, open war was on the rise. The Forerunners were confident that their valour and technology would stop the Flood. Unfortunately, the parasite had spread too far across their empire. On the verge of defeat, the Forerunners made one last ditched attempt to eradicate the Flood from the galaxy. They constructed the seven Halo rings and used the Ark to send the rings to different parts in the galaxy. The seven rings would destroy all sentient life and Flood biomass. Once the rings were in place, the effects of the rings cleansed the galaxy of the all life, including Flood, in an instant.

With their enemy defeated, the Forerunners then began to repopulate the galaxy with various alien lifeforms that had been indexed, storing DNA samples, embryos and live specimens. These lifeforms were then returned to their home planets.

Characters

 * Cortana
 * John-117
 * Mendicant Bias

Species

 * Forerunner
 * Flood
 * Gravemind
 * Human
 * Jiralhanae
 * Kig-yar
 * Sangheili
 * Unggoy

Vehicles

 * Keyship
 * Unnamed Forerunner Starship

Weapons

 * Unidentified Forerunner Weapon

Other

 * Combat Skin
 * Strato-Sentinel
 * Sentinel

Locations

 * Balaho
 * Doisac
 * Earth
 * The Artifact
 * Eayn
 * Sanghelios
 * Installation 00
 * Installation 01
 * Installation 02
 * Installation 03
 * Installation 04
 * Installation 05
 * Installation 06
 * Installation 07
 * Unidentified Forerunner Planet

Organizations

 * Flood
 * Forerunner
 * United Nations Space Command

Trivia

 * Origins is the first event in the Halo franchise to depict the Forerunner species figure, though they were wearing Combat Skin and their true features were never shown.
 * Origins is the first event to depict life on the home planets of the Unggoy, Jiralhanae, and Kig-yar.