The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals.
Production companies：
Shaw Brothers
·
TVB
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PJ One Cool Film Company Limited
·
One Cool Pictures
·
Stellar Mega Films
·
J.Q. Pictures
·
Media Asia
·
Revenue：$88,658,655.00
Overview：The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals.
