For three and a half hours, in the pouring rain, amid the mud and shattered trees of a rubber plantation called Long Tan, Major Harry Smith and his dispersed company of 108 young and mostly inexperienced Australian and New Zealand soldiers are fighting for their lives, holding off an overwhelming enemy force of 2,500 battle hardened Viet Cong and North Vietnamese soldiers. With their ammunition running out, their casualties mounting and the enemy massing for a final assault, each man begins to search for the strength to triumph over an uncertain future with honour, decency and courage.

Richthofen goes off to war like thousands of other men. As fighter pilots, they become cult heroes for the soldiers on the battlefields. Marked by sportsmanlike conduct, technical exactitude and knightly propriety, they have their own code of honour. Before long he begins to understand that his hero status is deceptive. His love for Kate, a nurse, opens his eyes to the brutality of war.