Kevin Sullivan is an architect and former Marine. He and his wife Ellen have a son named Tommy, a great kid who is nuts for the Texas Rangers. While Kevin had to stay home and work, Ellen took Tommy to Disneyworld for Spring Break. On their way home, a bomb goes off on their plane, killing all on board. His life upended, Kevin tinkers with the idea of suicide, but is more attracted to the idea of revenge. His decision made, he begins a new mission and embarks on a new life combating terrorism, by whatever means he decides are necessary.

Boston, Massachusetts, 1975: Charley Murphy is walking home down an alley when he witnesses a murder committed by Lucas Kerrigan, the leader of a Boston criminal enterprise. Bound morally to report what he has seen, he does so, but it comes at a very high price to the young Vietnam veteran. Kerrigan orders Murphy's brother savagely beaten, and then has his father murdered in attempts to intimidate Charley. But Charley testifies and Kerrigan is convicted. Even so, it is obvious to everyone, even Charley, that he must enter Witness Protection, then a fairly new program of the US Marshal Service...

It was supposed to have been just another routine night for Mike Lowe, a newly-promoted sergeant working Homicide in the police department. But then the call came, the call that would forever change his life, and the lives of so many people surrounding him. An anonymous call reports that body parts are scattered all about a vacant house. When the police enter the house, incendiary devices go off, killing more police on the scene. Suddenly, Lowe finds himself in command of a task force he barely feels qualified to lead. Among the prime suspects are a fundamentalist church and a high-ranking...