Complex sentence: Erks has accepted a large sum to smuggle three illegal teenage Chinese immigrants, one seriously hurt, and a fourth, the son of a wealthy Chinese casino owner and a fugitive intent upon settling a score with the Chinese American secret society, the Triad.
Split into simpler sentences: Erks has accepted a large sum to smuggle three illegal teenage Chinese immigrants, one of whom is seriously hurt. A fourth passenger is the son of a wealthy Chinese casino owner, a fugitive intent upon settling a score with the Chinese-American secret society, the Triad.