Harn and Tawan are double crossing their boss when they’re exchanging gold and ruby for heroin with a drug dealer. During the exchange, Pat and Yo see the whole thing and steal the gold, but they are chased by Harn and Tawan. Luckily, they are both helped by Tong and they also capture Tawan. Tawan tries to trick them in making another exchange, but Tong knows the trick and wants to make the trade with the drug dealer in person. While the exchange is in progress, Nittaya, the officer in charge of the case, brings in the police force to make an arrest. After the shooting out, the police seize all the gold and heroin, but Tong and his gang get away with the rubies. Nittaya knows what’s going on and demands a share of the rubies.