1. Lurking and probing: In 1940, Unit 731 secretly expanded its laboratory in the Northeast. Zhao Jingzhe disguised himself as a laborer and sneaked in. He witnessed the tragic situation of his compatriots being used as "experimental materials" and determined to take revenge; Su Qingyao approached the periphery of 731 as a chamber of commerce and accidentally met Zhao Jingzhe while collecting intelligence. After confirming their identities, they reached cooperation.
2. Combat of wits and counterattack: Long Ge used his familiarity with the terrain of Northeast China to repeatedly destroy the "bacterial bomb transportation line" of 731 - using herbs to pollute the water source and poison the Japanese horses, setting up a "fascination array" to make the transportation team get lost in the virgin forest, and even instigated Japanese military doctors who still had their conscience to obtain experimental data.
3. Decisive battle and price: In order to accelerate the plan, Shiro Ishii launched the "Kwantung Army Special Exercise" in an attempt to use bacterial weapons to attack important towns in North China. Longge joined forces with the Anti-Alliance Forces to conduct a two-front operation of "open attack laboratory + secret attack command center": Zhao Jingzhe led his team to blow up the bacterial storage warehouse and fought with Shiro Ishii in close combat; Su Qingyao used a secret message to induce the main force of the Japanese army to enter the swamp, and cooperated with the Anti-Alliance artillery coverage to completely crush the conspiracy. In the end, Shiro Ishii fled in panic, and the crimes of 731 were made public. However, the members of Dragon Pavilion also paid a heavy price - many doctors sacrificed their lives to develop the antidote, and some strongholds were destroyed due to exposure.