The Instructor's Secret

Retired Chief Instructor Ian Carter returns to his hometown, opening a car repair shop under a hidden identity, enduring humiliation. Only teacher Su Wan defends him. Ian investigates a conspiracy to sabotage the dam. When a Flood Peak strikes, the city falls into crisis. Ian reveals his identity, takes command of the dam, and opens the Flood Diversion Gate, saving people. He exposes the villain's conspiracy, wins Su Wan's love, and earns respect, choosing to stay at his repair shop.