After a betrayal from within her company, private security operative Sam Hunter heals from her near-death experience and returns to work.

Sam goes on a mission to kill a kidnapped colleague to keep him from compromising the team. However, he has some shocking revelations.

Sam reconnects with Faroux, the man she seduce and betrayed in Tangier. He makes her an offer with vital information on the line.

Aidan discovers the connection between Ballard and the name Hour-glass. Sam shadows Jack Carter and Lewis Conroy.

Aiden goes on the run after the accusations. Sam finds a familiar face at the hospital who appears to be an ally.

Sam continues her investigation into Hourglass. Sam and Stephen's bond deepen. Byzantium races against time.