He dropped into Normandy on June 6, 1944 with the 101st airborne. He was then rounded up by a Colonel to go to the town of Ramelle. After he, Corporal Fred Henderson, and James Francis Ryan took out a German half-track a few miles outside the town, they encountered Captain John H. Miller and his Squad, who were sent to bring Ryan home after the deaths of his three brothers. Toynbe then participated in the Battle at Ramelle. During the battle, he set off a couple of detonated charges, killing and wounding a column of German SS Soldiers with the explosion and shrapnel. He later helped clear a German Tiger Tank with Rice, Garrity, Lyle, Weller, Gary, Wilson and another paratrooper.
After clearing the tank, he spotted the German 20mm Flak Cannon and yelled a warning prior to the aforementioned cannon blowing apart the various tank invaders with its deadly shells. He survived the shells but was shot in the back while retreating to the Alamo.
There is a continuity error in the movie, during the halftrack scene, Toynbe is seen having an M1 Garand, however, during the preparation for the Battle of Ramelle, he is seen wielding an M1 Carbine, even when he is killed, he is wielding an M1 Carbine, as it was noticeable by its thin barrel.