Gary jumped into Normandy on D-day. He was in the same squad as Private Lyle and was later rounded up by a Colonel to go and defend a town called Ramelle under the command of Captain Jennings. He survived the initial bombings while his CO didn't. He was later put under the command of Capt. John H. Miller.
During the Battle at Ramelle, Gary was positioned in the building with another paratrooper. He helped to disable a tank. He tripped a grenade into the tank after Lyle shot the SS officer. Shortly after, he was then shot in the back by a 20mm flak shell, instantly killing him.