Lilly (Kathryn Morris) and her team grow worried as they realize Vera (Jeremy Ratchford) has hit rock bottom when he goes missing, but they hope a new twist in a 2006 arson case -- one that Vera had been obsessing about -- may help lead to his whereabouts. Danny Pino, John Finn and Tracie Thoms also star in the new episode "Flashover," which features the music of Pink Floyd.