A lone secret agent from the Office of Naval Intelligence is sent on a mission to relay critical intel to the Master Chief. There’s just one catch—every seven hours, her memory resets. Now she must make a perilous journey through closely monitored space, desperate to learn whatever she can about her own past as well as that of the Master Chief. Through the help of an AI companion and battlefield reports of others who have encountered the legendary hero, she pieces together just how important her task may be.