In a world where messenger pigeons are the heroes of war, a small pigeon named Valiant dreams of leaving behind his everyday life in the humble aviary of London. With World War II as the backdrop, Valiant joins a group of unconventional recruits on their mission to become a messenger for the British Army. Despite being smaller and less experienced than his companions, Valiant clings to his determination and the dream of becoming a hero.
Alongside his loyal friend, the introverted pigeon Bodecia, and a diverse cast of quirky characters, Valiant faces dangers and unexpected challenges. From attacks by hawks to the fierce German enemy, the adventures of this brave group test their courage and friendship. As they progress in their mission to deliver crucial messages and save their country, Valiant discovers that true greatness is not measured by size but by the strength of the heart.
With a touch of humor, thrilling action, and vibrant animation, the story takes us on a journey filled with camaraderie and heroism, highlighting the importance of never giving up and following our dreams, no matter how difficult they may seem. In the end, Valiant learns that each of us has a role to play in the fight for what is right, no matter how small we may be.