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

This is the beginning of the Gate-verse. Make sure to check that out after this movie!

(Selected by Tony - available at the Re-Watch & Movie tier for $10)

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.

(This is a first time reaction - available at the Re-Watch & Movie tier for $10)

This was watched after the end of SG-1 Season 10 and before the start of Atlantis Season 4.

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

(This is a first time reaction - available at the Re-Watch & Movie tier for $10)

This was watched after Atlantis 5x01 and before Atlantis 5x02.