"Lost City" is the two-part finale to the seventh season of the science fiction television show Stargate SG-1. The episode was written by Brad Wright and Robert C. Cooper, with Martin Wood directing. The first part originally premiered on March 2, 2004, with the second part showing a week later on March 9, 2004 on Sky One in the United Kingdom. SciFi Channel in the United States then aired part one on March 12, 2004 and part two on March 19, 2004. "Lost City" was originally conceived as a Stargate SG-1 feature film, with Brad Wright and Robert C. Cooper first discussing the project in 2001. As it developed, it was reimagined as a finale to Stargate SG-1 and the beginning of spin-off series Stargate Atlantis. Ultimately, with the knowledge that SG-1 would return for an eighth season, the story was shaped into both a season seven finale as well as informing parts of the Atlantis pilot, "Rising". The episode had the largest budget since SG-1's pilot, "Children of the Gods". Guest stars including William Devane as President Henry Hayes and James McDaniel as General Francis Maynard returned, having first appeared in previous lead-in episode "Inauguration". Frequent guest stars Ronny Cox and Tony Amendola also returned as Robert Kinsey and Bra'tac respectively. Jessica Steen was introduced as Dr. Elizabeth Weir, who would later become one of the lead characters in spin-off Stargate Atlantis. Real world Air Force Chief of Staff, John P. Jumper also appeared as himself. This episode was nominated for Emmy, Gemini and Visual Effects Society awards. Plot Part 1 Racing against the forces of Anubis, SG-1 travel through the Stargate to an alien world which they know is home to a Repository of the Ancients Knowledge. As the team debate whether one of them should use the device or if they should simply destroy it in order to prevent Anubis from taking the device for himself, his forces arrive and begin their attack. Jack O'Neill (Richard Dean Anderson), who years before was nearly killed by the overwhelming amount of knowledge after accidentally using an identical device, decides he should be the one to use, it in the hope it will help them defend Earth. In Washington, D.C., new President Henry Hayes (William Devane) calls upon Dr. Elizabeth Weir (Jessica Steen), an expert in international politics, to replace General Hammond (Don S. Davis) for a three-month review. Vice