All episodes

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.

Halsey's recruits have made it this far, and now begin to take their first steps as Spartans. An insurrection must be quelled, and peace assured. How will they cope with their newfound abilities? 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.

When Dr. Halsey created the Spartans to save humanity in the shadow of a looming war, she thought she would be saving humanity from themselves. When the Covenant began their assault, she realized the Spartans might be the only thing that could save humanity instead from extinction. 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.