Top demolitionist Jiang Nan works anonymously as a safety guard at Tengfei Demolition. On his first day on the job, he is unjustly photographed secretly by gold medalist Liu Yunyun and is misunderstood as his suitor. At the blasting site of the Tongzi Tower, Jiang Nan discovered a hidden danger in the drawings and stopped the blasting, but was ridiculed by Liu Yunyun and others. After the blasting, an accident broke out, and Liu Yunyun and his mother Fu'er mishandled the situation, which escalated the crisis. Jiang Nan took action to resolve the crisis, but was slandered. In the end, he slapped Liu Yunyun and others in public. However, during the assessment of the Demolitionists Association, Liu Yunyun and others found out his true identity and regretted it.
