Master Chief, um super-soldado ciberneticamente modificado, defende a humanidade contra o Covenant, uma aliança de alienígenas fanáticos, no século 26.

Em 1996, na cidade de Boring, alunos dos clubes de teatro e vídeo encaram os altos e baixos da vida adolescente nos tempos do vídeo-cassete.

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

Hastati Squad, the newest batch of freshman cadets at the UNSC's Corbulo Academy of Military Science, pays the price for cadet Thomas Lasky's tactics.