In the darkness, you firmly guard the sun in your heart; in the long night, you silently usher in the dawn; in the tiger's den, you endure humiliation and wait for the opportunity; in the fight, you rise quietly and kill the enemy without a trace; your name is unknown, your merits will last forever... 'Fire苗', a code name that makes the enemy hate it to the bone, wanting to dig three feet into the ground and eliminate it... Cheng Qianfan, code name Fire苗. His story begins in the early spring of 1936... They say that a warm heart will melt the ice and snow, they say that a warrior's grave is brighter than a slave's paradise, they say that in order to avoid the suffering of future generations, for their homeland, and for their families to no longer suffer, they choose to fight, bravely forge ahead, sacrifice their lives, and follow one after another... only for one answer: 'The mountains and rivers are still there, the country is peaceful and the people are safe...'