Easy Company is introduced to Captain Sobel, who has the group undergo hard and unfair training. As a result, Sobel comes into conflict with his men, including Richard Winters, his executive officer. The company is shipped to England to prepare for D-Day.

Easy Company are sent to liberate the French village of Carentan, where they lose several men in heavy fighting. The episode focuses on Private Albert Blithe, who struggles with crippling anxiety following the battle.

With the addition of many new men, Easy Company heads to Holland to participate in Operation Market Garden and prepare an Allied route into Germany, but they meet stiff German resistance.

Winters writes a report on the challenge of an unexpected resistance to a German attack, and is haunted by his conscience after shooting a teenage German soldier. Operation Pegasus is depicted. Easy Company is called to Bastogne to repel the sudden German counterattack.

Easy Company experiences the Battle of the Bulge and have to hold ground near Bastogne while running low on ammunition and other supplies. The episode focuses on medic Eugene "Doc" Roe as he helps out his fellow soldiers where he can, while also scrounging for medical supplies, of which the Company is dangerously low.

Easy Company battles near Foy, Belgium, losing numerous men. In the episode, the actions of 1st Lt. Norman Dike, the Company's commander, are examined and questioned. Serving as narrator is 1st Sgt. Carwood Lipton, who attempts to keep the morale of the men up as they endure their trials in the forest near Foy.

Easy Company is in Hagenau in Feburary, 1945, where they prepare for a night patrol mission to capture German prisoners. The patrol includes one veteran who is despised for missing Bastogne and a new lieutenant fresh out of West Point.

As the Allies move into Germany and the war comes closer to an end, disillusionment and anger set in for Easy Company--until they stumble onto a concentration camp abandoned by the German military.

As the Germans surrender, it appears that that the hard days for Easy Company are over as they are stationed in Austria. But they soon learn that those solders without enough service points will be sent to fight in Japan.