Saunders and his squad, "White Rook", go in to find out what happened to another squad, "Black Rook" that went silent while on a patrol to find the location of a German big gun. Saunders finds the missing squad in a dye factory and all are dead. While searching the dye factory for Germans, they find a hidden German deserter. Saunders must decide if the prisoner lives or dies when the squad make their escape.

On the frontline, the squad receives three new replacements straight from rear echelon duty in England. They are Gainsborough (a scared, overweight cook), Temple (an equally scared ex-ballet dancer), and Crown (a radio announcer whose cocky attitude masks his fear). Saunders reluctantly takes these newcomers on a dangerous recon mission and discovers that his survival depends on the ingenuity of these misfits.

While in a French town on leave, Hanley's leg is pinned by some debris during a bombing raid. In the church building with him is an undetonated German bomb which is still timed to explode. Help arrives in the form of an British demolition expert who is suffering battle fatigue and is angry at Hanley for trying to pickup his girl at a local bar.

While playing possum behind enemy lines, the wounded Hanley is captured, then interrogated. A When Hanley won't cooperate, General Von Strelitz takes Hanley away for further questioning. The German general calmly kills his chauffeur and forces Hanley to replace him. Von Strelitz refuses to explain what he's plotting, and Lt. Hanley doesn't appreciate the promotion to Kapitan in the Heer.

A worn out Sgt. Saunders must lead Sgt. Jenkins and his men into an area that had already seen lots of casualties. All of the men except Saunders and Jenkins are killed before they reach their objective. After his capture Jenkins uses capture to enable Saunders to obtain the information needed.

A wounded Frenchman has important information. He and another man are injured when a land mind goes off. The squad takes refuge in a Convent of Cloistered Nuns. When Hanley arrives, he brings information that the medic died of a heart attack on the way. Saunders and Caje go to the village in search of the local doctor. The only doctor they find is a German doctor. They take him back with them.

Braddock, while on duty as Lt. Hanley's runner, is "appropriated" by a tough-talking, overbearing colonel as his jeep driver. Unfortunately the colonel decides to drive the jeep himself and his reckless driving results in an accident in which both men are knocked unconscious. When Braddock awakens he is captured by a German patrol, but since he happens to be wearing the colonel's coat--which he put on to keep warm while the colonel was zooming around the countryside--the Germans think that he actually IS a colonel, and nothing Braddock can say or do will convince them otherwise.

A thirteen year old French boy wants to join the squad. After he is told he can't, he follows the squad. After Hanley is wounded, Caje tells him that he is now part of the group and his orders are to see that the Lt. gets back to town. When they get back to town, Lt. Hanley and the boy discover that the Germans are setting a trap for the Americans. Hanley sends the boy to find Saunders and the men and to tell Saunders about the Germans so he can radio the information to HQ.

P.F.C. Marsh runs into his wife Lt. Amelia Marsh at a field hospital. He asks for a pass to spend time with her. While he is waiting for his pass, Kirby goes AWOL and ends up at the hospital. Marsh has to go out on a mission in place of Kirby and is wounded.

Hanley and his men are taken prisoners. The encampment comes under artillery fire. The Germans get all but Saunders out. The men use the artillery barrage to make their escape. When they get far enough away Hanley does a head count. They find that Saunders is not with them and the men want to go back to look for him. Hanley won't let them. Saunders follows them with both his hand badly burnt from the fire that burned the ropes he was tied up with. They raid a German camp looking for food and Kelly gets killed while he is putting on boots to replace those a German soldier took from him earlier. They get back to their lines with a delusional Saunders not far behind carrying a dead German thinking it is his brother.