Throughout history, humanity has called on true heroes to rise. The Master Chief stands on the shoulders of the many heroes that came before him. This live-action film chronicles moments throughout history, in which a variety of everyday people accept the call to become heroes. The film draws a line that connects early human existence to the near future and leads us directly to the future events of the Halo universe.

There have always been heroes. In the face of enveloping darkness and insurmountable odds, someone must always find the strength to step forward and accept the challenge. To become something larger than themselves. This film explores the long line of heroes throughout history who have answered the call to light the way. Master Chief carries the legacy of all these heroes with him as he charges into battle, the latest to take up to the mantle.