This sequel to the 1994 movie Stargate chronicles the further adventures of SGC (Stargate Command). It turned out that the Goa'uld Ra was only one of many alien System Lords who used the Stargates to conquer much of the universe. When Earth uncovers a working cartouche to decipher the coding system of their own Stargate, they find they can now travel anywhere. Earth's military sends out SG teams to explore new planets, find technology, and oppose the Goa'uld. Jack O'Neill and Daniel Jackson from the original movie are part of SG-1. They are joined by Sam Carter, a scientist, and Teal'c, a Jaffa who is convinced the Goa'uld are not gods.
The animated action/adventure Stargate Infinity continues the saga of the men and women of Stargate Command as they travel the universe using the extraordinary powers of the mysterious Stargate portals. Stargate Infinity is the story of veteran Stargate explorer Major Gus Bonner and a group of young Air Force Academy cadets. Wrongly accused of treason, they must flee across the universe, pursued by a ferocious new alien enemy, the Tlak'khan - mercenaries working for the Nax'kan Council. The team must find a way to clear Gus' name and to protect the mysterious Draga - a strange alien being who may be the key to unlocking the ultimate secrets of the Stargate and of the Ancients who built them. Aired as education TV, most episodes come complete with a nifty kids' message!
The story of Stargate Atlantis follows the cliffhanger episode on Stargate SG-1's seventh season finale "Lost City", where SG-1 found an outpost made by the race known as the Ancients in Antarctica. After the events of Stargate SG-1 season eight premiere "New Order", the Stargate Command sends an international team to investigate the outpost. Soon, Dr. Daniel Jackson discovers the location of the greatest city created by the Ancients, Atlantis. The story unfolds when the members of the expedition encounter the Wraith, the race that defeated the Ancients ten thousand years ago.
SG-1 search for an Ancient artifact called the Ark of Truth to finally defeat the Ori. However, the Ark is in the Ori's galaxy.
Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.
The previously unknown purpose of the ninth chevron is revealed and takes a group of refugees on a one-way trip to a millions of years old Ancient-built ship. Led by Dr. Nicolas Rush and Colonel Everett Young, the refugees are trapped on the ship, unable to change its programmed mission.
Young Catherine Langford embarks on an unexpected adventure to unlock the mystery of what lies beyond the Stargate in order to save the Earth from darkness.