The producers stated that they made this episode as a treat to the fans. Yeah, great treat! The episode had me cringing, looking through my fingers and thinking "this can't be an episode of Stargate" throughout the whole thing. I hated the idea behind it. "What if there was a zombie apocalypse in the SGC!" and "What if the Furlings are Ewoks!" What the hell were the writers thinking?! That they want to torture us?
I hated everything about this episode. EVERYTHING! Even the appearance of Jack didn't make it any better. The Thunderbirds parody is the one part which truly sealed it for me. Made it the worst episode of Stargate ever made.
If the producers really wanted to make a treat to the fans, they would have made something with a lot of action, some comedy and reintroducing a major character or something. They did one of those, but not the rest.
To put this episode into perspective, I would rather watch Infinity than this crap. Worst Episode Ever.