The old bridge in Qingshui Bay suddenly collapses. Engineer Jiang Li promptly closes the bridge, saving everyone but leaving the village's 6,000 tons of oranges at risk of going unsold. Determined to protect the villagers' harvest, he and Shen Lan work to secure orders and resist price pressure while tackling problems such as missing bridge components and geological hazards. After numerous setbacks, the new bridge finally opens to traffic, and Qingshui Bay finds a path to prosperity built on transparency, fairness, and mutual benefit.