Complex sentence: In the movie's plot, Chin Chin (Chu Feng) leads a gang know as the Killer Bees on a revenge mission to kill Cao Lei's (Jackie Chan) family however she kills everyone but Cao Lei and falls in love with Cao Lei.
Split into simpler sentences: In the movie's plot, Chin Chin (Chu Feng) leads a gang known as the Killer Bees on a revenge mission to kill Cao Lei's (Jackie Chan) family. However, she kills everyone but Cao Lei and falls in love with Cao Lei.