FlashForward Season 1 Episode 21 Countdown ( Air Date 2010-05-13 ) Genre Sci-Fi & Fantasy, Drama category. Overview "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. Elsewhere, Lloyd finds the common denominator that can help him solve the complex equation he was working on in his flashforward.".
FlashForward Season 1 Episode 21 Countdown
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- Watch: FlashForward Season 1 Episode 21 Countdown on CWR-CRB
- Stars: Joseph Fiennes, John Cho, Courtney B. Vance, Dominic Monaghan, Sonya Walger, Jack Davenport, Brían F. O'Byrne, Zachary Knighton, Christine Woods, Peyton List
- Director: Mark D. Fleming, Tom E. Dahl, Thomas A. Harris, Kevin Blank, Jennifer M. Gentile, Wendy O'Brien, Ramin Djawadi, Mark H. Ovitz, Brannon Braga, David S. Goyer, Jessika Borsiczky, Ralph Vicinanza, Cleve Landsberg, Vince Gerardis, Dennis Parker, Angela Nogaro, Cleve Landsberg, Danny Weselis, Bob Gorelick, Alexandra Patsavas, David Klotz, Jacob Cooney, Jacob Cooney, Aaron A. Goffman
