Citadel

Citadel agents Nadia and Mason follow a red herring and end up on an ill-fated luxury train. Whether they survive or not, their organization is headed for a downfall.

When Nadia and Mason have an awkward reunion at a restaurant in Spain, they do not expect a Manticore operative to barge in and enjoy a one-sided slugfest against them.

Mason accompanies Nadia on a dangerous mission after a brief rest at a safe house. Along the way, he receives a piece of intel that can dent his faith in her.

Nadia and Kyle arrive at the Manticore compound in Morocco and risk their lives to free a former colleague; however, their hero's welcome is short-lived as they are forced to deal with a dangerous accusation.

Driven into a corner, Nadia must disclose a life-altering truth that she had been hiding from Mason. Back at Manticore, Dahlia sets the wheels in motion to acquire what she wants.

Kyle, Nadia and Carter risk everything to save one of their own; the identity of the mole is revealed.