It's a race against time as the Feds band together to stop death row inmate Foster and his cult following's killing spree ahead of his execution. Meanwhile, as Cutty and Ruth's relationship gets serious, Simone and Dina are forced to reconnect.

After an internal investigation unit agent is drugged and buried alive in a desert outside of Vegas, the Feds director enlists Garza's unit to discreetly investigate. Meanwhile, Simone's plans for her 49th birthday bash are sidelined.