In the 1930s, in the southern part of Jiangxi, a place known as the "red cradle" of the Chinese revolution, there was a mother who sent her eight sons to the Red Army and rushed to the front line of the battlefield. But the war was ruthless, and six of the brothers died one after another, leaving only the eldest brother Yang Daniu and the youngest child Manzai. Manzai found Daniu's troops and became an ordinary soldier under his brother. The tempering of a series of difficult battles made the new recruit Manzai quickly grow into a real soldier. The final battle started. In order to cover the safe evacuation of the large army, Yang Daniu led his younger brother Manzai and all his comrades in bloody hand-to-hand combat until they ran out of ammunition and food... In front of the hero, there was a battlefield full of gunfire, and behind the hero, the village in his hometown was still peaceful and serene, the breeze blew through the golden rice waves, and an elderly mother was watching alone by the path at the head of the village... The film is adapted from the well-known story of "Eight Sons Joining the Army" in the southern part of Jiangxi. In the era of war and smoke, tens of millions of people devoted themselves to supporting the revolutionary war and dedicated everything they had. As a microcosm of that cruel era, the mother-son love, the inseparable brotherhood, the loyal love for family and country... countless heart-wrenching and inseparable emotions are condensed in the film, together composing a heroic movement that is moving and immortal.