Halo: The Fall of Reach - Season 1 Episode 1 Act 1 An unstoppable threat. An unthinkable sacrifice.
Overview: Humanity is at a crossroads. War is imminent. Choices are made, children are selected, and the greatest heroes humanity has ever known take their first steps in realizing that destiny. Experience the dramatic tale of the origin and intrigue behind the SPARTAN program that propelled characters like the Master Chief, Dr. Catherine Halsey and Cortana into the pantheon of Halo lore.