Retired iron chief Xiao Zhenguo learned that his grandson Xiao Ran was maliciously seriously injured by a real estate developer and his son and was sent to the intensive care unit. The other party refused to admit his fault and wanted to end it privately. Eager to protect his grandson, he no longer held back. He relied on his past reputation to coordinate law enforcement and relevant departments to conduct inspections in accordance with regulations. He investigated the violations and chaos of the companies involved overnight and severely punished the perpetrators in accordance with the law. During the investigation, an old military medal with blood unexpectedly surfaced, which revealed the secret behind the disappearance of his son twenty years ago and the conspiracy of cross-border illegal gangs. The former veterans stepped forward again to defend Sun's rights in accordance with the law, find the truth about his son, and restore the unsolved grievances of the past.
