Paul Kersey is again a vigilante trying to find five punks who murdered his housekeeper and daughter in Los Angeles.
Beckman driving a '55 Thunderbird on Route 66 hooks up with Johnny after hoodlum Hoot and his gang shoot his car. Continuous conflicts between Hoot and Beckman make Beckman and Johnny determant to teach him a lesson.
A few years from now, Earth will have the first contact with an alien civilisation. These aliens, known as Newcomers, slowly begin to be integrated into human society after years of quarantine.