At the height of the First World War, two young British soldiers must cross enemy territory and deliver a message that will stop a deadly attack on hundreds of soldiers.
George MacKay
Lance Corporal Schofield
Dean-Charles Chapman
Lance Corporal Blake
Mark Strong
Captain Smith
Andrew Scott
Lieutenant Leslie
Richard Madden
Lieutenant Blake
Claire Duburcq
Lauri
Colin Firth
General Erinmore
Benedict Cumberbatch
Colonel MacKenzie
