Jack O’Neil started his career with Stargate Command as its first mission leader. He took a team of soldiers and the young archeologist Daniel Jackson through to the planet Abedos. Upon arrival they encountered Ra, a being of immense power. After defeating the so called Sun God Jack returned to Earth with two of his soldiers and left Daniel behind to live his life. A few years later, the gate was reactivated and Jack was called back into action again. They returned to Abedos to retrieve Daniel and found out that the Stargate was not a one way corridor, but a galactic network linking planets across the galaxy. Jack was appointed leader of SG1 and led his team through many missions to safe guard Earth and other Planets against threats, most notably, the Goa'uld and the Replicators. After several years Jack was Promoted to Brigadier General and finally to Major General. From this position he now works the political side of all matters Stargate in the newly formed Federal Department of Homeland Security.