A mysterious global event causes everyone to black out simultaneously for two minutes and seventeen seconds during which each person sees a glimpse of their lives six months from now, as of April 29, 2010. As the story begins, a character is saved from sleeping and others have to face confusing situations. We also begin to learn some things about the mysterious Mosaic Collective.
Mark and Demetri go to Utah to investigate a lead on a suspect who might have a connection to the global blackout. Olivia sees the man from her flashforward, while her daughter Charlie is having trouble dealing with hers.
Mark and Janis arrive in Germany to discuss the past events regarding the blackouts. Demetri fears about his future. Meanwhile, Aaron tries to get Mark to help him with an appeal.
Olivia finds it difficult to take advice from Bryce. Mark and Demetri come to disagree with each other. While Nicole goes back to work and has a shocking premonition.
Mark is questioned about his flashforward during a Senate Intelligence Committee hearing. Janis ponders on how the future will make an impact on her current romantic relationship. Meanwhile, Olivia gets a tip about Mark's flashforward.
Mark, Demetri and Wedeck try to determine the links between all the attacks involving themselves. Demetri and Gough find a clue that was missing from Mark's flashforward. Lloyd is heartbroken when his son goes missing from the hospital.
Mark, Demetri, Gough and MI6 agent Fiona Banks investigate a Blue Hand club. A surprise visit sends Aaron back to square one about his late daughter. Demetri finally tells the truth to Zoey. Nicole volunteers at the hospital and decides to help Bryce with his flashforward.
Mark gets a lead on the tattooed assassin that he saw in his flashforward. Simon and Lloyd play a game of poker to settle old scores. Aaron uncovers the harsh truth behind Tracy's passing. Janis has second thoughts about her career.
Bryce begins his search for the woman in his flash forward, Aaron becomes concerned over Tracy's odd behavior, Mark attempts to track down the person responsible for texting Olivia and outing his drinking during his flash forward vision, and Demetri's co-agents try to find the mysterious caller who forewarned him about his unfortunate fate.
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 - against Simon's better judgment - and Zoey discovers the true meaning of her flashforward.
Mark must meet with a therapist to regain his badge after being suspended by the FBI; Demetri reluctantly teams with CIA agent Vogel to search for Lloyd; Janis learns family secrets about Simon.
Mark must meet with a therapist to regain his badge after being suspended by the FBI; Demetri reluctantly teams with CIA agent Vogel to search for Lloyd; Janis learns family secrets about Simon.
Aaron delves deeper into why the black-ops Jericho unit is after his daughter, Mark continues to question Lloyd about a phone conversation that took place during their flashforwards, and Zoey tries everything in her power to change Demetri's fate.
Demetri, Janis, Simon and Vogel go to Somalia to search for clues; Bryce tells Nicole he has cancer; Olivia tries to get her daughter to tell her what she saw in her flashforward.
Mark and Vogel execute a plan to uncover the identity of the mole in the FBI; Mark moves out of the house to protect his family; Keiko continues her search 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 cuddle. Wedeck tries to help Aaron infiltrate Jericho in order to rescue Tracy, and Olivia's friendship with Lloyd grows stronger.
The clock is ticking on Demetri's life as Mark and his team go in search of his whereabouts; terror suspect Alda Herzog promises to give Zoey intel on where Demetri is - but at a price; and Olivia learns the identity of the person who sent her the text message informing her that Mark was drinking in his flashforward.
Janis continues to thwart her fellow FBI agents as an inside mole to a mysterious employer; Olivia is given some disturbing news by Gabriel, who has been subjected to numerous flashforwards; and Aaron's life is in danger in Afghanistan when he tries to blend in with the locals as he continues his search for his daughter.
Demetri and Agent Banks attempt to track down a hugger as questions arise about the universe course-correcting itself, when people who thought they'd escaped their fates are found dead; Mark reluctantly agrees to help Simon find his sister, Annabelle, but discovers he's withholding the truth about her true circumstances; the FBI discovers the identity of Suspect Zero; and Nicole learns the whereabouts of Keiko - the woman in Bryce's flashforward - but struggles with whether to share this information, due to her growing feelings for him.
On the eve of the flashforward day, the world waits to see what will and won't come true from their visions. Meanwhile, Mark must protect Gabriel, Aaron finds Tracy and attempts to rescue her, and Simon meets the organization responsible for the Blackout.
Mark continues his interrogation of Hellinger in a desperate attempt to find out when the next blackout will occur; Demetri must choose between helping Janis and Simon break into NLAP to stop the blackout from occurring, or turning the fugitive Simon in to the FBI; Lloyd finds the common denominator that can help him solve the complex equation he was working on in his flashforward; while Tracy fights for her life, Aaron discovers why Jericho was after her; and Nicole wrestles over her strong feelings for Bryce and what would happen if she told him she knew the whereabouts of Keiko.
It's D-Day - April 29, 2010 - and while everyone waits to see if their flashforward visions come true, Mark uncovers the date of the next blackout, and Simon, with Demetri, attempts to stop it from happening by breaking into the NLAP mainframe.