The Xiao family discovered that their adopted son's background was questionable, and after investigation, confirmed that the child had been switched back then. Xiao Ye, who grew up in an ordinary family, returned to his biological father's side with his mechanical talent and resilient character. Facing family changes, he insisted on finding out the truth and won recognition with his professional ability. The relevant offenders were dealt with by the law. In the end, Xiao Ye rebuilt trust with his family, devoted himself to technological research and development, and also helped the older generation of craftsmen regain the stage, welcoming a new life.