chunk: Harcourt is in the latter stages of launching advanced plans to exploit the alien race by attempting to mass-produce and sell a drug called Jabroka. The drug was used in the past to pacify the Newcomers when they were slaves, but has no effect on humans. The abnormality noticed by Francisco on the body of the Newcomer criminal earlier, was a visual sign of the drug's influence. In addition, the Newcomers Hubley, Porter and Strader were involved in the planning phases of the operation, but were later murdered due to Harcourt's desire to exclude them from any future financial rewards. Ultimately, Sykes and Francisco track down Harcourt, where he is secretly negotiating a timetable for a release of the potent narcotic. The detectives attempt to foil his plans, as they are later led on a car chase with Harcourt and his cohort Kipling, through the streets of downtown Los Angeles. Following a head-on collision where both parties are injured, Harcourt attempts an escape on foot. Sykes