Revolution - Episode 18 - Video Preview - Clue

Here's the video preview of Revolution Episode 18: "Clue" on NBC.

Revolution 1x18 'Clue'- A captured Nora is tortured and left for dead; Monroe learns that Rachel is heading for the Tower; Miles tries to figure out why many of his close associates are being killed; Miles, Charlie, Neville, Jason, Hudson and Sanborn try to make it out of the Plains Nation so that they can join Rachel. Original Air Date: May 20, 2013 on NBC.