Synopsis

Driven to explore Hourglass more deeply, Sam makes a startling disclosure about events from her past. Yet, her inquiries unexpectedly draw the attention of Byzantium’s client. As Aidan tasks Natalie with identifying the source of the leak within MI6, her own unsettling findings place her in peril from every direction. Meanwhile, Byzantium uncovers potentially catastrophic evidence concerning the dam – information that Jack Turner intends to exploit to guarantee his success.