San Antonio private investigator Tres Navarre is used to working on the edge - that razor-sharp line between legal and life sentence. But this time he's stepped straight into a no-man's-land. When an old friend appears at his door splat tered with blood and wanted for attempted, Tres doesn't have to think twice about where his loyalty lies - or the consequences. Tres is sure that his friend Ralph is innocent, but the two only have a few hours to solve a decades old col d case and fend off the authorities and the San Antonio Mafia. To find the truth, they must set a collision course with the past - and with a secret that will tear their lives apart.