"Sparks and Clouds Street" tells the story of Lu Renjie, the second young master of the Lu family, a tea merchant family in Yuncheng, Qiannan, Guizhou, who witnessed his elder brother Lu Renhao, who participated in the Nanchang Uprising, sacrificed his life to cover his comrades while delivering tea between 1927 and 1935. Under the influence of his elder brother, Lu Renhao inherited the revolutionary legacy, took over his elder brother's gun, returned to his hometown, and ignited a spark in Qiannan. In the long battle, Lu Renjie fought wits and courage with Zhao Guohu, the eldest son of the tea merchant Zhao family, and the reactionary He Feiwu. He experienced the ups and downs of fate, the test of life and death, and the baptism of war. He practiced the spirit of a spark can start a prairie fire, and under the influence of the underground party member Lin Wenli, he established an armed team led by the Communist Party to welcome the Red Army into Guizhou and break through the Wujiang River. He himself became a true revolutionary fighter in the baptism of war.