McKay's efforts to harness the energy of an alien planet's atmosphere allows for a return trip to Earth -- but the team may not be able to return to Atlantis. false 2018-11-03 16:28:17 Holly Dale Joseph Mallozzi Paul Mullie Joseph Mallozzi Paul Mullie 7.3 2004 43 https://www.thetvdb.com/banners/episodes/70851/25341.jpg 9 1 2004-09-10 sub sub progressive False False 67 70851 25341