抗日战争时期，鲁南临城、枣庄一带的铁路线上活跃着一支游击队，队员在大队长刘洪（曹会渠）、政委李正（冯喆）的领导组织下，配合主力部队给予了日军沉重的打击，被当地百姓亲切地称为“飞虎队”。 　　日军想方设法偷袭“飞虎队”，终使刘洪受伤，但刘洪因此得以被寡妇芳林嫂（秦怡）照料，成 就一对爱人。刘洪伤愈后，配合李正指挥作战，大败日军。恼羞成怒的日军欲以肆意杀戮之法激怒刘洪，刘洪中计，准备在微山湖与日军展开正面交锋，幸得李正及时劝阻，“飞虎队”力量才得以保全。修整后的“飞虎队”将沿线日军悉数歼灭，但芳林嫂却在执行侦察任务时被捕。

This movie is based on the true story, which happened in Shan-Dong Province of China during World War II. It is based on a collection of memoirs of the guerrilla members. Due to the fact that it happened during World War II and there was not much secrets, this movie is that it was more realistic than other movies in that many real names were used, and the actual site was not changed either like other war movies of the time. The drawback of the movie was that in the latter stage of World War II, the guerrilla force was developed into an impressive 400 plus members from its original beginning of 3, and it launched many major offensives against the enemy, but this part was not shown. The movie only concentrated on the time there were only several dozen members.