A modern veteran transmigrates onto the battlefield of the Long March and finds himself in the body of the commander of a Red Army independent regiment, accompanied by the Iron-Blooded Campaign System. Combining modern military thinking with the System’s advantages, he establishes a secure base behind enemy lines, develops the economy, upgrades equipment, and expands his troops. He becomes a dagger striking from behind enemy lines during the Red Army’s Long March, helping the main force break through the encirclement while forging a new path for resistance behind enemy lines. In doing so, he brings his personal aspirations together with his revolutionary convictions.