Eventually, things come to a head when the gangsters kidnap Tarzan to make Ma Yau surrender a briefcase meant for Crazy Kung, which Ma Yau had accidentally nabbed. The twins join up to defeat the gang that has turned their lives upside down, and in a showdown in a vehicle testing center Crazy Kung dies in a runaway crash test car. The film ends with the impending double wedding of the twins to their girls and Bok Min's introduction to his real parents; but when Bok Min gets cold feet and Ma Yau goes looking for him, a final gag falls into place when the wedding guests catch the two twins together and are unable to tell them apart.