When military engineer Li Yun woke up, he traveled through time and became Li Yunlong in "Bright Sword". Just when his boss was angry and wanted to evacuate him to the quilt factory. Looking at the old sleeves in the hands of the soldiers, made in the border area, the modern soul and the spirit of the bright sword collided to create brilliant sparks - a clothing factory? Just in time to develop camouflage combat uniforms! Arsenal? Rubbing new gunpowder by hand and designing a submachine gun! A year later, the Japanese were horrified to discover that the Eighth Route Army was equipped with mysterious submachine guns and had tactics as strange as those of modern special forces. The Battle of Pinangrad was staged ahead of schedule. Yamamoto's special agent team attacked Yangcun at night, but saw the soldiers of the Independence Regiment wearing night vision goggles and sneered: "I'm waiting for you!"
