The Day After Tomorrow: Into Infinity

Ben, Gwen, and Max must stop an extraterrestrial who plans to open a gateway that leads to an alien invasion.

A young man finds out that he holds the key to restoring hope and ensuring survival for the human race, while an alien species called the Drej are bent on mankind's destruction.

SG-1 searches for an ancient weapon which could help them defeat the Ori, and discover it may be in the Ori's own home galaxy. As the Ori prepare to send ships through to the Milky Way to attack Earth, SG-1 travels to the Ori galaxy aboard the Odyssey. The International Oversight committee have their own plans and SG-1 finds themselves in a distant galaxy fighting two powerful enemies.

Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.