Stargate Atlantis Season 4 Episode 6
Overview
When a virus causes amnesia in everyone except Teyla and Ronon, the Atlantis team must work together to find a cure before their memories fade entirely.
Director: Martin Wood
Guest Star: Brenda James, D. Harlan Cutshall, David Nykl, Graem Beddoes, Jewel Staite, Joel Cottingham, Kavan Smith, Linda Ko, Niall Matter, Robert Clark, Zach Selwyn