LONG reprimands CHUNG and SHEK for bullying DONG-DONG. DONG DONG is found missing in the next morning. LONG. Suspecting CHUNG & SHEK, LONG reports the case to the police and also posts bills to search for DONG DONG. SHEK succeeds in transferring to the canine division but his assigned dog unexpectedly is ROCKY whose uncooperative attitude worries SHEK. SHAN move to village house living with WAH. On SHEK'S exam day, ROCKY, considering SHEK could help him to find the killer of its ex-owner,, co-operates with SHEK to pass his exam. On its beat, ROCKY, running across DUDU, startles at her beauty but SHEK suspects it is the pet of his ex-girlfriend. SHAN and WAH move to SHEK'S downstairs and become neighbor. WAH has an affair with IVY, SHAN'S enemy, and cheated SHAN. ROCKY, who flies into rage and scares gangsters away gets SHEK into trouble as complaints arise.… ...