The infant baby of Sam and Anne Bennett is critically hurt after been hit by a bottle thrown by a gang of juvenile-delinquent hoodlums known as the Wolf Pack. Police Detective Tom Lynn takes charge of the investigation and orders shakedown of youth gangs in the city's toughest section, but this fails to locate members of the Wolf-Pack gang. A savage beating is given an innocent witness by Bennett, who takes matters in his own hands in the belief that the law authorities are too slow.