In 1935, in Qingshi Town, North China, ten poor children aged fifteen or sixteen formed a gang for twelve white-flour steamed buns. A crooked red star posted in the dilapidated school has become their unspoken hope. When the Anti-Japanese War broke out, they learned to save people, deliver letters, join the army and make sacrifices from fleeing, starving and trying to undermine each other. By 1949, none of the ten people had returned to the team, and some did not even leave their names; but the opening of the new school and the reopening of the railway answered the promise for them: Those who are alive will gather at dawn.