Dale Tanner, who runs a whistle-blower website, is killed by an explosion in his car, yet it wasn't a planted bomb but an explosive charge dropped by a military grade drone. Corpse and wreck are hastily disposed of by Homeland Security agent Guerrero, Colonel Fortis even lures Castle and Becket to the only nearby military drone base so evidence gathered NYPD can also be confiscated. Still, the team looks into possible motives concerning both exposure and infidelity, and opportunity, notably former drone programmer Simon Warburg.
—KGF Vissers