Watch Defiance (S3E4) : Dead Air Full Episode Online for Free in HD @ br br Air Date : June 12th, 2015 br Season Number : 3 br Episode Number : 4 br Episode Name : Dead Air br Networks : Syfy br Genres : Drama, Science Fiction br br Storyline: br A Votanis Collective explosion rocks Defiance; Nolan and Amanda plan escape after they are captured; Stahma's relationship with the Omec leader T'evgin takes a turn.