The episode kicks off when SG-1 discovers a massive Mayan-style pyramid on P7X-377. Inside, Daniel Jackson is drawn to a crystal skull that, upon eye contact, emits a blast of "lepton radiation."
The Omeyocan are "the enemy of my enemy" (the Goa'uld), but surprisingly, they are never seen or mentioned again in the series, leaving a major plot thread dangling for years. [S3E21] Crystal Skull
Bringing Nick to the SGC is the only way to save Daniel. Nick is the only one who can communicate with the "Giants" and convince them to return Daniel to our dimension. The episode kicks off when SG-1 discovers a