Allied soldiers from Belgium, the British Commonwealth and Empire, and France are surrounded by the German Army and evacuated during a fierce battle in World War II.

Hal (Timothée Chalamet), wayward prince and reluctant heir to the English throne, has turned his back on royal life and is living among the people. But when his tyrannical father dies, Hal is crowned King Henry V and is forced to embrace the life he had previously tried to escape. Now the young king must navigate the palace politics, chaos and war his father left behind, and the emotional strings of his past life - including his relationship with his closest friend and mentor, the aging alcoholic knight, John Falstaff (Joel Edgerton).