The Call of Duty franchise is riding a roller-coaster through time. Originating as a World War II-based experience, the series jumped ahead about sixty years to modern times for its fourth main installment, Call of Duty 4: Modern Warfare, which was critically acclaimed and a commercial blockbuster, perhaps due in part to the change in setting. Many would wonder why the newest installment, World at War, brings the series back to its bread-and-butter time period. They would also rightfully question the swap in development teams, with the less-popular developer Treyarch taking the wheel this time around. So, can World at War prove itself a worthy successor to Modern Warfare and avoid the ugly step-child status of Call of Duty 3?