In March 1936, in Shanghai, Tang Jingwu, the battalion commander of the special battalion of the Kuomintang Army, executed the Japanese ronin and Japanese soldiers in the Japanese Concession, and his righteous act was severely dealt with. He led his troops to deus ex, where he was rescued by the first "belly-breaking" operation. The Japanese army repeatedly bought it and decided to wipe it out. Tangtuan broke through the tight encirclement and defected to the New Fourth Army, and the second "broken belly" was successful. Shu Yu, commander of the Central Jiangsu Military Region, gave Tang Tuan a special task of "false defection to the enemy" to smash the Japanese army's sweeping plot, so Tang Tuan embarked on the third journey of "breaking the belly". Tangtuan was finally recognized by the Japanese high-level officials with its sincerity of "defecting to the enemy", and a thousand troops were inserted into the enemy's heart justifiably. After lurking for 87 days, the dumplings finally started the third battle of "broken belly" action. The battle was won. Unfortunately, before Tang Jingwu could fill out the registration form of party member, he closed his eyes forever because he was seriously injured and died.