EPISODE 1: SG-1. somehow, our sg-1(1) is pulled through to this other reality. something to do with ba’al messing with some ancient tech in the other reality. the sg-1(2) of that reality, led by sam2 and featuring a major sheppard2, has snuck onto the ha’tak ba’al is using as his base of operations. they run into our sg-1(1) and there’s some spider-man pointing meme and then sam1 and sam2 start discussing how this could have happened while the valas compliment each other’s hair and cam1 and sheppard2 go “wait but you’re supposed to be in atlantis” “no, YOU’RE supposed to be in atlantis.” eventually we find out that ba’al is using ancient tech to develop a hyperdrive capable of traveling between galaxies, which the goa’uld don’t have. his test destination is the pegasus galaxy because he figures that if it works for one jump but then fails, then he can just turn up at atlantis and ask the tau’ri for help again after threatening them lightly to save face. obviously the humans don’t want ba’al going to pegasus, because we like our villains to stay confined to just one galaxy, and also if his hyperdrive works then he could destroy atlantis or ally himself with the wraith or be defeated by the wraith and have his ship captured and now the wraith have an intergalactic hyperdrive or—well, there’s lots of ways it could go wrong, and sg-1(1) gets the point that they need to help sg-1(2) stop ba’al. they spend much of the episode tracking ba’al and sneaking around the ship, until they finally corner ba’al in the engine room and teal’c2 shoots him. unfortunately, they enter hyperspace almost immediately after this, and are captured by… another ba’al. END.

EPISODE 2: ATLANTIS. somehow, our atlantis team1 is pulled through to this other reality. something to do with mckay2 and zelenka messing with some ancient tech in the other reality. our atlantis team1 is quickly locked in interrogation rooms because who are they and why is major sheppard with them instead of colonel mitchell? this tips off mckay1 to the fact that they’re now in an alternate reality. fortunately mckay2 and zelenka have already reached this conclusion and they’re let out of the interrogation rooms just in time for news to reach atlantis that a ha’tak has arrived in pegasus. (and also before ronon1 and ronon2 start fighting instead of just glaring menacingly at one another, because who thought it was a good idea to have ronon2 interrogate ronon1. he didn’t even ask any questions.) alternate weir decides to send the atlantis team2 in to investigate but mckay2 is like “i’ll need someone to help me with the goa’uld tech, we’ll take zelenka” but zelenka is immediately like “no?? there’s another you here. take him. i don’t like leaving the city” so it’s decided that both mckays will go, and you can’t send mckay1 without the rest of his team so EVERYONE is going. they take two jumpers because mitchell2 and sheppard1 both want to fly the jumper. when they arrive through the space gate that the ha’tak is near, they see a badly damaged wraith hive with no life signs. the ha’tak has also taken some damage, but much less, and they’re able to fly through a hole in the hull to board. they detect minimal life signs: two on the bridge, eleven in the cells, and a few others scattered around that must be ba’al’s jaffa. the group decides to split up; they toss a coin and mitchell’s team2 goes to the bridge while sheppard’s team1 goes to the cells. when sheppard’s team1 arrives at the cells, they find them unguarded but locked. mckay1 cracks the lock and we see the cell doors slide open. cut to the bridge. when mitchell’s team2 arrives, they see one of the dots on the life signs detector begin to fade. mckay2 gets the door open just in time to see ba’al collapse to the floor, having been fed on by a wraith. END.

EPISODE 3: CROSSOVER. what the hell, ba’al is in a wraith now. (i’ve always wondered about what would happen if the goa’uld met the wraith; would they fight and if so who would win? or would a goa’uld take a wraith as a host? is that even possible? i say yes because it’s Fun.) the symbiote entered the wraith and then promptly fed on his former host because he was hungry. this is obviously Terrible News because the wraith are bad enough but tbh they’re not very smart. ba’al is. mitchell’s atlantis team2 all point their weapons at him and radio sheppard’s atlantis team1 to let them know there’s now a goa’uld with a wraith host. sheppard1 responds and says “ok, we’ll we’ve got two sg-1s here. and also todd” to which mitchell2 replies “who the hell is todd?” (“pale skin, long hair, likes to suck your soul out with his hand but makes it weird by returning your soul ten minutes later?” “oh you mean casper.” “what the hell kind of a name is casper?” “what the hell kind of a name is todd?!”) we find out that “casper”, who is of course alternate todd but was named casper by mitchell2, was on the hive ba’al disabled. he and one other wraith were taken aboard the ha’tak, and he was put in the cell for later in case the first implantation of a wraith didn’t work. he’s willing to help everyone defeat wraith ba’al, because goa’ulds taking wraith as hosts is bad for the wraith too. so they do some stuff, and with much difficulty, kill wraith ba’al. it’s harder than killing a normal wraith because he has the goa’uld regenerative ability, and also he keeps feeding on his jaffa to recover after being shot. eventually they manage to trick him into a set of rings and space him. then they have to decide what to do with the ha’tak. casper wants it for himself because of the intergalactic hyperdrive and turns on them. they manage to activate the self destruct and flee back to the jumpers. they believe that casper is destroyed in the self destruct, but he survives somehow. the rest of the episode is the sams, mckays, and zelenka trying to figure out how to send sg-1(1) and the atlantis team1 home. we also get a few character moments between everyone and their counterparts: cam2 and both sheppards discuss puddlejumpers while cam1 is sad because he doesn’t have the gene and never received gene therapy so he can’t fly a puddlejumper. they break into medical to convince beckett to give cam1 the gene therapy; they’re pretty sure it’ll work on him since it worked on cam2. it does, and the cams and the sheppards immediately have a race to the mainland and back. (the sheppards win, but it’s close, and the cams try to blame it on the fact that cam1 has never flown a jumper before while everyone else has.) the daniels go to the library together and share their knowledge about the ancients and the ori; mostly they know the same stuff but they do both learn a few new things. the ronons fight one another. it’s a draw. the teylas and the teal’cs watch the ronons fight, and then meditate. the valas flit between each of the groups and compare their versions of everyone. vala1 ends up in weir’s office and bugs her with a bunch of questions until weir actually puts down her work and just Hangs Out. vala2 ends up with the cams and the sheppards because she’s absolutely best buds with sheppard2 and desperately wants to meet sheppard1. anyways after everyone hangs out for awhile they go home and it’s a very :) ending, which is what they need after All That.

i like this character swap idea a lot because after watching the pegasus project i was kinda chomping at the bit for more character interaction between sheppard and the rest of sg-1. particularly vala. more after the cut cause i wanna yell about all the other stuff i love about this!!