 At the beginning of Stargate Atlantis, Beckett is a doctor with an extended knowledge of medicine and just discovered the Ancient gene.Elizabeth Weir selects him for the Atlantis Expedition and stationed him at the Ancient outpost in Antarctica, where the SG-1 team had defeated the nemesis Anubis in the Stargate SG-1 season seven finale, "Lost City".In "Hide and Seek", he creates a gene therapy that emulates the ATA gene in normal humans with a 48 percent success rate.