Well, this is what happened:
Flashback 10,000 years ago on this planet... These two old guys are talking about hiding something (a ZPM) and saying that if the Brotherhood falls, no one will know where it is. Meanwhile, you can hear a bunch of Wraith darts going around their big city. They go outside, get beamed up.
Onto now, Rodney, John, Aiden, and Teyla are on the planet which looks really beat up. They're trying to find a ZPM because they know it's there somewhere because it's one of the addresses that the other Weir gave to them in Before I Sleep.
So on stuff happens (my dad was on the phone with my aunty, didn't really hear what was happening).
They have these three little stones that are like a pieces of a puzzle. Rodney comes up with a search grid, they split up (Rodney, Elena [local], and some other local [didn't catch her name] all go together). John, Teyla and Ford go in another team.
Each team finds stones, and now they have eight.
Meanwhile on Atlantis, some guy screwed something up and Zelanka is trying to fix it, the guy accidently does something, turns out he activated these 'deep space censors'.
Meanwhile somewhere else, Koyla (sp?) is around doing some training with some other Genii, they know about what Sheppard and the gang are doing, plan to get ZPM. They show up on the planet and follow the gang.
Rodney and the gang can't find the 9th (and final) stone, they instead find some underground cavern which has a little pedastool for putting the stones on, they're missing the middle one. They figure that the symbols on them line-up to be a gate address to where the ninth one is located.
Ford, being left outside to guard, gets darted and a little beat up by Koyla and his gang. Koyla yells threats down to the team, Rodney offers to help them find the 9th stone, Koyla tells the others to stay down in the cavern. Rodney and Elena go up to find it.
Meanwhile on Atlantis, Zelenka finds out that there's a Wraith dart on it's way over to Atlantis. Will be there in about 27 minutes. Big 'oh crap' look from Weir.
Rodney and Koyla and everyone try to dial the gate, get no where. Elena comes up with an idea that it's not actually a gate address, but kind of a map. They go back to the temple where they were before, notice symbols on the outside of the map, line 'em up, have a location.
Rodney figures out that the 9th stone isn't in that location, but behind the map. He finds it, they go back to the cavern where John and Teyla and Ford try to plan escape. Teyla has a knife, Ford has some flash grenades.
Meanwhile on Atlantis, they're deploying puddle-jumpers with Beckett getting to fly one of them. "I'm a doctor, not a pilot!" They're up and away.
The Wraith dart shows up, shoots down a puddle-jumper (not the Beckett one), scans the city, the other two jumpers follow it, the dart self-destructs.
Rodney and Elena and Koyla and all are back down in the cavern. Rodney puts the things on there, was explaining something to Koyla, Koyla basically tells him to stop stalling, some Genii guy puts in the last stone, puts his hands in the little 'hand panels', and dies.
Rodney and John try to arrange the stones differently, John realizes that since it's the Brotherhood of the 15, that you gotta arrange the number stones so all sides equal 15, he puts his hands down on there, the ZPM pops out of the wall thingy.
Ford sets off the flash grenades, Teyla starts stabbing Genii, they take control, Koyla is sitting and not happy, Rodney complains about his hearing and eyes (funny

).
Koyla says that John should just shoot him now, John says he's right, but doesn't, they go off into the sunset, Elena gets her homies to get the ZPM from them because they started their own 'New Brotherhood' and they need to hide it again, Rodney is hurt (because Elena had a crush on him that John and the gang had to point out to him).
They go back to Atlantis empty handed, Weir explains to them what happend while they were gone, Zelenka figures that the Wraith dart sent back information to a ship (no really?), he figures out where, figures out there are 3 Wraith hive ships on there way here, will be here in 2 weeks.
'Oh crap' looks all around.
I really enjoyed that episode
Ha! Mine isn't a mini-summary! My summary rocks!