Chen Qiang, a masonry foreman, refuses to cooperate with a renovation company in using substandard building materials to deceive homeowners. He refuses to sign off on violations and exposes their corner-cutting on the spot. The boss grows resentful and maliciously smears Chen Qiang and his crew, blacklisting them and cutting off their work opportunities. In dire straits, Chen Qiang takes on an old-building renovation project and livestreams the entire construction process, upholding his commitment to quality craftsmanship. Homeowners who were previously victimized come forward to verify the truth, earning him public recognition. Fellow contractors maliciously suppress him and obstruct his access to material suppliers, so Chen Qiang finds legitimate suppliers elsewhere to secure proper materials. During a project bidding process, a competitor wins the contract with a low bid but cuts corners, resulting in serious quality problems when severe weather strikes. Chen Qiang steps in to carry out emergency repairs and earns people's trust.