share time: 2025-02-10 09:40:34
When state secrets are at risk of exposure, reclusive military engineer Chen Mo engages in a deadly game with ambitious foreign spies. Thirty years of anonymity collide with meticulously laid traps. As his daughter gets accidentally entangled in this covert war, Chen must choose between national duty and paternal love. In this silent battlefield, who truly deserves the title - Backbone of the Nation?
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