In the film, we first see Michael Sing Ku and the other Four Fathers: James Wing Chow, Li Lum Chung, and Fan Wong on a cold rainy night being transported from a China prison to a prison in Los Angeles, California. When one of the guards pushes James down, Michael helps him up as they get on the plane to Los Angeles.
The next day at the Los Angeles prison, Michael's younger brother, Wah Sing Ku, comes to visit and tells Michael that it's been a while since they've seen each other and that he promises him he will get him out of prison and that America has many laws, but money changes everything.
A few days later, in the night, Michael and the other Four Fathers wait outside a warehouse as Wah Sing Ku is about to pay the Chinese general the Money to get Michael and the Four Fathers out of prison, but before the General can receive his pay and release the Four Fathers, L.A.P.D. Cops Martin Riggs, Roger Murtaugh, Lee Butters, Ng, Ng's partner, and some other officers show up and declare that the money is counterfeit, to which the General responds by shooting three of the Four Fathers, but Michael and Wah manage to escape, killing some of the General's men along the way.
Riggs catches up to them with a forklift and manages to knock Wah behind some barrels, but as he is about to jump onto Michael, Wah returns and fights Riggs. Just when Murtaugh was about to shoot Wah, Wah dodges the shot, and the bullet hits Michael instead in the stomach. Wah grabs Michael and takes him to another part of the warehouse near the river and lies him on the ground where Michael dies in his brother's arms. Wah tries to avenge Michael's death by fighting Riggs and Murtaugh, but he later falls in the river with Riggs and gets shot to death as well by Riggs with an AK-47 submerged nearby, leaving Michael's death in vain.
Behind the Scenes Edit
He is played by Conan Hutch Lee in the film.