The original from the Stargate franchise, Stargate SG-1 chronicles the adventures of Stargate Command. When Earth uncovers a working cartouche to decipher the coding system of their own Stargate, they find that they can now travel anywhere. Earth's military sends out SG teams to explore new planets and technology, and oppose the Goa'uld.
After the events of the previous season with Earth now safe and the Anubis defeated, the remaining members of SG-1 focus on finding a way to revive Colonel Jack O’Neill. In an attempt to get in touch with the Asgard, alien allies who had previously helped O’Neill, Teal’c and Carter fly to the old Asgard homeworld of Hala. Meanwhile, back at Stargate Command, Dr. Elizabeth Weir, the newly appointed head of the Stargate program, and Daniel Jackson receive a message from the Goa’uld System Lords. The other races of the galaxy have learned a newfound respect for humanity after Earth’s stunning defeat.