Chen Mo, a technical director with ten years of service, catches a longtime employee disguising confidential company documents as printed homework and leaking the company's core secrets. Instead of being praised, he is isolated by the entire staff and fired by the boss. Even his fiancée of five years turns her back on him and goes to someone else. When the company's firewall is breached and the business teeters on the brink of bankruptcy, everyone begs him to return. But Chen Mo proves his worth by landing a prestigious job at a major tech company, clearing his name through code, and standing firm on his principles. He wins both career success and true love, while those who failed to see the truth finally suffer the consequences.