During an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares. false 2018-11-03 16:24:27 Robert C. Cooper Robert C. Cooper Robert C. Cooper 7.2 2007 43 https://www.thetvdb.com/banners/episodes/70851/335388.jpg 4 4 2007-10-19 63 70851 335388