In the midst of the Algerian war for independence, a group of fighters is trapped in the mountains, surrounded by the colonial army. Cut off from their allies, they have only one hope: to transmit a vital message to save their unit. But crossing enemy lines is a suicide mission. Their only chance lies with an unexpected messenger: a courageous dog named Messaoud. Carrying the letter attached to his collar, he embarks on a perilous crossing, braving the hostile nature and the dangers of war. But ...