Lt. Colonel John Sheppard and Ronon Dex searched the mainland for the Enchuri plant. (SGA: "Tabula Rasa") The captured Human-Wraith Hybrids were kept on the mainland during treatment. (SGA: "Search and Rescue", "The Seed", "Broken Ties") Lt. Colonel John Sheppard escorted Dr. Parrish and Dr. Kiang to the mainland. (SGA: "Remnants")