When a solar eclipse sends a colossal blast of super chilled air towards the earth, it then sets off a catastrophic chain of events that ...

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

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 ...