"Capt. Gerry Mercado (Ramon 'Bong' Revilla, Jr.) is an undercover agent who is on a mission to capture the Ice Crystal Gang, an international crime syndicate led by Lorenzo David (Dante Rivero). Part of his task is to infiltrate the mob by disguising as a member of it. In order to test his loyalty to the organization, Lorenzo orders Gerry to assassinate a certain Roselle Villareal (Maricel Soriano), sole witness to one of their crimes and keeper of the operation book of the crime group. Believing that the operation book is the key to the success of his mission, Gerry resolves to protect Roselle at all costs-even if it means going against Lorenzo's fleet of thugs and assassins."