In the year 2517, humanity's last hope is with Dr. Catherine Halsey, the SPARTAN-II program, and one six-year-old boy: John-117. Kidnapped and ruthlessly trained, John endures and rises as the leader of the Spartans: he becomes the Master Chief! These legendary heroes are entrusted with stopping the Covenant at all costs...but will their harrowing biological augmentation and unparalleled MJOLNIR armor be enough to rise to victory?