The Black and White Club: Brothers by Peter Bergeron

When JJ Martin, a tough-as-nails ex-Marine Corps sniper, stumbles onto a mobile meth lab hidden on the family's grounds, he unwittingly lights the fuse on a war he can't outrun. Wounded and desperate, he sends out a coded message to the one person capable of finding him before it's too late. Armed with little more than fragments of intel and instinct, Josh Martin—FBI Special Agent and JJ's older brother—launches into the wilderness with a single objective: find his brother before the men hunting him do. At his side are the CIA's most problematic asset and a combat-trained war dog. To save JJ—and themselves—Josh's team must outmaneuver street-level predators, mob bosses with political cover, and a kill-team so efficient they've never failed a contract. High-octane, relentless, and steeped in Clancy-level tactical detail, this thriller drags you into a world where survival demands absolute precision and family isn't just worth fighting for—it's worth going to war for.