Exile

"The Los Angeles Police Department's famed 5-2 squad boards a commuter train in an attempt to take a cold-blooded killer into custody. John Barron, the newest and youngest member of the elite LAPD unit, learns quickly that the 5-2 has their own deadly system of justice, and that even the slightest protest will result in his suffering the same swift fate. Thus begins a dark, explosive struggle between good and evil--pitting Barron's squad against an exceedingly imaginative and brutal killer"--Amazon.com.