Taiwan Junior puppy ( Aaron Kwok ornaments ) , making gangster jailed temporarily , waiting for the prosecution . For security reasons, the dog came to Hong Kong, and changed his name to admission to the secondary school of the holy education strong . Negotiators A Kennedy ( Ng Man Tat ornaments ) negotiations often go wrong , was sent to St strong education secondary school teachers when undercover , looking for the dog . A Kennedy came to San sterile strong secondary schools, found that the students here are some naughty teenager , where student leaders better headache . A Kennedy awareness in schools with female teachers dream ( Zhang Min ornaments ) , and soon her feel good , this time, A Caine 's girlfriend, policewoman A Qing ( Shu-Jen Chiou ornaments ) also came here when undercover . Deal with unruly students Shangqie powerless Ajian also facing a love triangle , the hilarious scene in the school constantly . Taiwanese gangster finally been released because of insufficient evidence , kill the puppy 's father came to Hong Kong to prepare puppy kill . The face of Taiwan gang Ajian eventually successful to save the next dog ?