Henry V, written in 1599, covers the events during the Hundred Years’ War, immediately before and after the Battle of Agincourt (1415).
Soon after becoming king, Henry is considering making a claim to rule France as well as England. He asks the Archbishop of Canterbury about the strength of his claim but decides to invade France upon receiving an insulting message from Lewis, the Dauphin.
The king's former companions from his days in the Eastcheap tavern hear of the death of Sir John Falstaff from Hostess Quickly. They take their leave of her and set out to join Henry's army.
In France, despite the Dauphin's insistence that Henry is an unworthy opponent, the French king receives the English ambassadors but finally rejects Henry's claim to the crown. Henry's soldiers take the town of Harfleur.
Meanwhile, as her father gets his nobles ready to retaliate, Princess Katherine begins to learn English with the help of her companion, Alice. The English soldiers are in poor condition - disheartened by sickness and foul weather. They begin to retreat, but Henry rejects the French Herald's offer of ransom and the two armies prepare to fight.
The evening before the ultimate Battle of Agincourt, Henry tours the camp in disguise, finding out what his men think. It leads him to consider the heavy responsibilities of kingship. In the French camp, by contrast, confidence is high. As battle begins, Henry rallies his troops and places them all in God's hands.
An English victory is confirmed, with miraculously small losses. As part of the subsequent treaty, Henry woos and wins Katherine to ensure the linking of the two countries through marriage.