MA CHI-CHUNG and his co-worker ship the dog, BROTHER, to the animal shelter run by the Agriculture, Fisheries and Conservation Department (AFCD), where CHI-CHUNG's older sister, MA CHI-HO, immediately tends to BROTHER's wound after seeing the dog hurt and bleeding. After checking out the dog, CHI-HO suspects that BROTHER was abused. As for YAT-CHOW, he has to be hospitalized after being bitten by BROTHER, and the wound makes him feel itchy and painful. Mistaking CHI-HO for a police officer, YAT-CHOW describes the moment he was bitten by the dog. YAT-CHOW learns that his new boss is the legendary cop, CHUNG WAI-KIN, and feels very excited. KUNG-YAN intends to clean the kennel, but fails to do so because BROTHER seems very aggressive. CHI-HO then offers some tips to KUNG-YAN, teaching him how to earn BROTHER's trust. Meanwhile, KAM-PO wants YAT-CHOW to throw him in jail in hopes of evading capture by KAM-TONG.… ...