In 1943, the Anti-Japanese War entered the most difficult stage of stalemate. Somewhere in North China, gunpowder smoke fills the air and mountains and rivers are broken. A military team named "Taishan" behind enemy lines, led by captain Zhou Weiguo, fought tenaciously under the iron heel of the Japanese invaders. They are not a regular army, and their members have different backgrounds: there are calm veterans, impulsive sharpshooters, tough female doctors, returned overseas Chinese engineers... They are short of guns and ammunition, and there are frequent internal frictions, but with their passion and flexible tactics, they continue to cause trouble for the enemy. An important intelligence transmission mission involved the armed workers in a huge conspiracy related to the anti-war situation in the entire region. Facing the cunning and cruel Japanese commander, the complex situation between the enemy and ourselves, and the internal crisis of trust, they must grow and transform in the test of blood and fire, use life and wisdom to protect the land under their feet and the people behind them, ignite the fire of hope in the darkest moment, and wait for the arrival of dawn.
