Middle-aged migrant worker Chen Weiguo makes a living by underwater salvage, suffering from long-term wage withholding and living in poverty. After his life welcomes a turning point, he keeps a low profile, returns to his hometown to take care of his elderly mother, anonymously funds the renovation of dilapidated rural houses, and starts an engineering company to treat his fellow workers kindly. Facing relatives' schemes and peers' malicious framing, Chen Weiguo calmly responds, smashes all kinds of conspiracies, and brings the villains to justice. After going through numerous storms, he meticulously cures his ailing mother, guards his family and original intention, achieves a bumper harvest in both career and family, and realizes the counterattack of an ordinary middle-aged man.