INTERPOL CONNECTION (aka HARD TO KILL) centers on two Hong Kong cops who settle their differences toward one another while struggling to focus on their mission. The unusual dynamic duel go out to track down notorious drug dealer but find themselves in a number of unexpected situations. They eventually get help from a beautiful Japanese police officer who is skilled in the art of combat, and the three go out to take down the drug lord and his army of gangsters.

In Hong Kong, a weapon dealer has a special computer chip, which is needed to build a secret missile. He is trying to sell it to a foreign goverment. The local secret police, the CIA and an enemy band is looking for him, but he has a very rich and influential man as his partner.