一九四一年冬，硝烟不散的上海和重庆，陈山被迫卷入风起云涌的谍海漩涡中，他经历与同胞并肩作战，与日谍殊死搏杀，最终一步步成长为坚强勇敢的爱国战士，用热血和青春，在烽烟中砥砺前行！Set in early 1940s, both Shanghai and Chongqing are covered by smoke of battle. Chen Shan is embroiled into surging conflicts between Japanese, KMT and CCP. Ultimately, Chen grows into a determined patriot after fighting together with fellow compatriots.