The Great War is a cinematic documentary covering America’s involvement in World War I during the critical year of 1918. After years of horrific battle, the Allies are on the verge of collapse and Germany is on the cusp of victory. The United States is forced to rapidly train, arm, and ship millions of young soldiers overseas to Europe for the first time. The series follows General John J. Pershing, leader of the American Expeditionary Force, who is charged with training and deploying an army almost from scratch; Michael B. Ellis, a young man fighting with the Army’s soon-to-be legendary Big Red One; and Horace Pippin and Henry Johnson, brave African American soldiers whose courage in battle helped their regiment be christened the Harlem Hellfighters.