share time: 2026-06-06 00:30:56
Lin Xiao, a rookie R&D engineer at a time-honored gear factory, detects anomalies in the precision gears marked "zero defect" right after she joins. Behind the seemingly silent gears lies a ten-year-old work injury case where her father was disabled by the factory's defective gears. The factory director, her father's old friend, puts her in a dilemma between family grudges, old friendship, conscience and truth. She must find the broken ring in the silent gears, uncover the hidden evidence, and save the failing factory, with dangers lurking at every step.
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01:51:44
