Hush Bobb, keep your spoilers to yourself.

Meanwhile, from tvguide.com:
Carter and Teal'c seek outside help to revive O'Neill while old foes make a surprise visit to SG-1 HQ in the two-hour eighth-season premiere, which offers changes aplenty.
At the end of last season, O'Neill was in a cryogenic coma after activating a weapon to destroy the evil Anubis. Also, Torri Higginson's Elizabeth Weir replaced Don S. Davis's Gen. Hammond as SG-1 chief. Here, the wary, poker-faced Weir mulls a proposal by the Goa'uld System Lords to join forces while invaders of a friendly Asgard ship clash with Teal'c (who has hair!) and abduct Carter.