Stargate SG-1 is a Canadian-American military science fiction television series created by Brad Wright and Jonathan Glassner. The series resumes the story of the 1994 Stargate film, where a military team led by Colonel Jack O'Neill and supported by the archeologist Daniel Jackson use an ancient alien artifact called the Stargate to travel to a planet where an alien named Ra oppressed the planet's people by posing as a god. After the Earth team defeated Ra, O'Neil returns to Earth while Daniel Jackson stays on the planet. The series pilot, which takes place roughly one year after the events of the film, reveals that Ra was not the only alien to use Stargates to transport human slaves to many worlds for thousands of years.