As a red party member, Lin Mo's identity as an undercover agent was exposed at the beginning. He still told lies and denied his identity, and continued to lurk at the naval command post. However, during the period of cooperation between the Kuomintang and the Communist Party, the military commander only had personal witnesses and no physical evidence or communication evidence, so he could not prove Lin Mo. Moreover, the military commander needed to use a knife like Lin Mo to eradicate dissidents. At this time, there were also special higher education courses, the French Concession, etc. The three-party game plan was deadly and bloody.