A young British officer resigns his post when he learns of his regiment's plan to ship out to the Sudan for the conflict with the Mahdi. His friends and fiancée send him four white feathers as symbols of what they view as his cowardice. To redeem his honor, he disguises himself as an Arab and secretly saves their lives.

The dramatised story of the Irish civil rights protest march on January 30 1972 which ended in a massacre by British troops.