Tung Man feels guilty as he thinks he has caused Sau Yin to have losses both financially and emotionally. He tries to compensate for Sau Yin's losses, but is rejected by Sau Yin who even states that she wants him to carry that feeling lifelong. She then goes for a trip to relax herself. Inspector Chi Wai appreciates Sun Man's performances and assigns him to be a police spy. When the assignment finishes, Sun Man will be promoted and he feels greatly encouraged. Siu Yin finds herself pregnant. Sun Man promises to marry her. However, he is perplexed as he knows that his married life will affect his secret duty. Following the family's advice, Sun Man gives up his promotion opportunity and marries Siu Yin. However, he still returns home late after his marriage and is therefore scolded by Tung Man. While chasing after a robber in the street, Sun Man's pistol is robbed. He is then faced with disciplinary punishment……