Let’s Go Save That Other Universe
A wish gone awry has created a universe where Buffy never came to Sunnydale! Oh wait did you already only know that part? Ok, what about the part where that universe's Master fights that universe's Buffy? Well that didn't go so well and neither did the big final plan to fix everything, so main universe Buffy and her pals will have to team up to help. And by "team up" I mean "get sucked into a big shattered portal thingy".