In September 18, 1931, Japanese troops launched a war of aggression against Chinese. Jiang Jieshi led the Northeast Army not resistance leads to retreat. The Communist Party of China through the Moscow delegation sent from overseas vanguard contingent, guiding the Manchuria armed struggle. Captain Gao Jian to enter the Mudanjiang vice captain medical rescue team identity, and northeast volunteer 21 brigade, a brigade major rendezvous for unity against japan. Gao Jian in their path to attack enemy ambush, Amano brigade, general Amano captured. The leadership of the Communist Party of China soldiers and civilians in Manchuria started the first gun. Amano brigade hit Japan issued a Equinox flower plan, intention of the Communist Party of China Far East International Traffic reconnaissance station underground traffic line.
Gao Jian used the Mudanjiang Datong hospital cover, a secret international transportation Liaison Station, pioneer SWAT team members Ding Yuanfu became the director of the hospital. Old mailman become one contact person. The Japanese military to master a spearhead of intelligence, the medical team was in doubt, rich and Dania was sent into the medical team monitoring team action. Gao Jian and the Party member Dania intelligence contact. To meet the Japanese army spy agencies long fan Cun, Dania, playing a double agent.