Ok, so it wasn't a three part episode like I thought, but it's close enough, since the last Episode said "To Be Continued..."

Warning: Potential plot spoilers below.
As continued from last episode, we meet a new group of people that may be related to the Ancients. Now that the Goa'uld are gone, we have the Ori. The Ori are supposed to be gods too. It looks like they might be invading the universe now. Although, by invading, I mean a mission to convert the masses, but not the way the Goa'uld did. But, "those that reject the path of to enlightenment must be destroyed."

It seems the Ori are opponents of the Ancients because they "abonded the path" and "sheilded" the humans. In the words of Daniel Jackson, "This is bad." This storytline has potential though. I hope they don't screw it up.

After watching the rest of the episode, it seems we have an Ori Crusade on the way.  Very scary, but it looks like it's "business as usual."