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.

An interstellar teleportation device, found in Egypt, leads to a planet with humans resembling ancient Egyptians who worship the god Ra.

In 1939, Professor Paul Langford and his daughter Catherine are still grappling with the mysteries of the ancient relic they discovered in the Egyptian desert more than ten years ago. With war looming in Europe and funding running ou