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.
Elenco: Courtney B. Vance , Jack Davenport , Sonya Walger , John Cho , Brían F. O'Byrne , Zachary Knighton , Dominic Monaghan , Christine Woods , Joseph Fiennes , Peyton List .