Sam finds herself in an alternate universe where everything is terrible. Teal'c is incommunicado, Vala's in jail, Mitchell's a paralyzed alcoholic, Other Sam has exploded on the SGC walls, and Landry is in the middle of establishing himself as dictator. But for all this terribleness, there is one glorious, fantastic difference. Hammond still runs the SGC! He does bow down to power-hungry President Landry, but we'll ignore that and just enjoy seeing him again.

It starts like a ghost story, it ends like Star Trek IV, and has some kind of solar flare disaster movie in the middle. This episode may not know what it's trying to be, but we know that we like it.

In yet another generic medieval village, there is yet another face off with a prior. And up on an Ori spaceship, they try once again to convert Vala. But this time it's Tomin who seems to be changing his tune. That doesn't make up for all the many people he's ordered to be killed. But maybe it's enough to help Vala and SG1.

Niam Cat has survived his joint from space, as one would expect from a toaster pastry feline that shoots rainbows. But when he's more awake that Weir and Rodney expected, he dashes all their brilliant plans to save the day. But it all works out in the end though, and if there's one thing we learn from this episode, it's that if you disobey orders, you get things you want.

It's Merlin! Finally! But that was a lot of hype for a sleepy guy who died shortly after being revived. At least our special friend Daniel was able to hang on to some of Merlin's memories. Elsewhere, Sam and Ba'al need to work together if they ever want to get everyone home. Team Sa'al?

The humans rescue a boatload of Ancients who kick everyone out of Atlantis only to be overrun by Replicators. Our heroes must then trick a nerd and sacrifice some wee baby turtles in order to save Atlantis.

Ancient Aliens, AI Robots, and intergalactic travel are all believable, but we draw the line at actual dragons. Also, we learn that the real sangraal is the enemies we picked up along the way.

Good thing Teyla's around to DD when the rest of the team goes on a bad trip off of wraith mind fumes. Shepherd fights Taliban, Ronan chases after non-existent wraith, Rodney gets fake catastrophic readings, and Becket sees dead people. Only Teyla can save everyone from the chaos.

It's an episode full of pain. Pokey rings, torture sticks, the betrayal of supposed friends, and a bunch of names that sound too much alike.

What's better than one McKay? Two! Unless you're in that parallel world they're destroying. Then the solution is clearly three McKays!