Brian helps Agents Harris and Boyle investigate the murder of a retired FBI agent and is shocked to find a link to the elusive head of a notorious drug cartel. Also, Brian reconnects with an old flame.
Brian's loyalty to the FBI is tested when Sands demands he steal the FBI's secret files on NZT; Rebecca is emotionally conflicted when she learns what her estranged father left her following his death.
When Casey and his SWAT team skim 80 NZT pills for themselves from the recovery of stolen inventory, it starts an internal investigation that is viewed through the shifting perspectives of Brian's immediate circle at the FBI.
Senator Edward Morra is targeted by a would-be assassin, and Brian is ordered to sabotage the FBI's investigation into the murder attempt in order to prevent exposing the Senator's connection with NZT.