A common thief and an employee of a Hong Kong stock company try to help an amnesia-plagued undercover cop to regain his memory and locate the whereabouts of the 50 million dollars cash used in a drug deal. In the meantime, they try to avoid becoming victims of the crime-lord that was responsible for embezzling 50 million dollars out of the stock company.

The third installment in the Lucky Stars series, following Winners and Sinners and My Lucky Stars. The team are released from prison to play detective in order to stop a ruthless gang from ruining their reputations, taking their lives, and that of a key witness in an upcoming trial. They must battle their way through and with the help of Muscles, take down the bad guys.