Demetri and Mark travel to Utah in search of a suspect who might be connected to the global blackout, while Olivia runs into the man from her vision.

Against Wedeck's orders, Mark and Demetri travel to Hong Kong in search of the woman claiming to know details of Demetri's fate. Lloyd tries to come clean about his and Simon's involvement in the global blackout, and Zoey discovers the true meaning of her flashforward.

A suspended Mark resumes his own investigation into Lloyd's disappearance. Simon attempts to hack into Lloyd's computer in search of clues, and Nicole speaks with a man who was transformed during the blackout in order to help her restore her faith and understand her horrific flashforward vision.

Demetri, Janis, Simon and Vogel go to Somalia to search for clues. Meanwhile, Bryce tells Nicole he has cancer, and Olivia tries to get her daughter to tell her what she saw in her flashforward.

Mark and Vogel put a plan into action to uncover the FBI mole, which could end up alienating Mark from his co-workers. Meanwhile, in an effort to protect his family and his marriage, Mark moves out of the house, and Keiko continues her search in Los Angeles for Bryce.

Demetri decides to put a rush on his wedding plans with Zoey when the captured FBI mole confirms the date of his prophesized murder. Meanwhile, Wedeck tries to help Aaron infiltrate Jericho in order to rescue Tracy.

Mark and his team search for Demetri, while terror suspect Alda promises to give Zoey information on Demetri's whereabouts. Elsewhere, Olivia learns the identity of who sent her the text message about Mark's flashforward.

Olivia receives disturbing news from Gabriel; Aaron's life is in danger as he continues to search for his daughter in Afghanistan.