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This film (drama)Also known as掩护，is aMainland ChinaProducerbeauty live，At2011Released in year 。The dialogue language isMandarin Chinese，Current Douban rating6.8(For reference only)。

In 1945, the Second World War came to an end, and the ambitions of Japanese imperialism were ultimately crushed. However, the long-suffering Chinese nation had yet to reach the end of its victory. With foreign enemies retreating, civil war erupted. In order to gain the initiative in the war, the Kuomintang and the Communist Party sent agents to gather vital intelligence, in addition to their direct confrontations. During this process, a scholar named Gao Zhihua (played by Lu Yi), using the alias Meng Chaoyang, successfully infiltrated the Telecommunications Department of the Military Command. During this time, he met a mathematical genius, Gong Li (played by Liu Tao), who had returned from overseas, and her identity raised suspicions. However, as their relationship deepened, Gong Li gradually dispelled her hostility towards him. On the other hand, the high-ranking officials in the Military Command never slackened in their investigation of Meng Chaoyang's identity. As the investigation progressed, Meng's surroundings became increasingly perilous, while his lover in Yan'an, Kang Jingjing, took on the heavy responsibility of clearing obstacles for him. In the trials of blood and fire, Meng continuously relayed intelligence crucial to the revolutionary victory to the rear...