Back in the 1990s, when Billy Graves worked in the South Bronx as part of an anti-crime unit known as the Wild Geese, he made headlines by accidentally shooting a 10-year-old boy while stopping an angel-dusted berserker in the street. Branded as a cowboy, Billy spent years in one dead-end posting after another. Now in his early 40s, he is a sergeant in Manhattan Night Watch, a team of detectives that responds to all felonies from Wall Street to Harlem between 1am and 8am.

Billy’s work is mostly routine, but when Night Watch is called to the 4am fatal slashing of a man in Penn Station, his investigation moves beyond the usual handoff to the day shift. And when he discovers that the victim was once a suspect in an unsolved murder --- a brutal case with connections to the former members of the Wild Geese --- the bad old days are back in Billy’s life with a vengeance.