It’s a tv-show(probably) i saw in 90s. Story happens in school (likely middle as kids were a bit younger than highschoolers) and all events there also mirrored in some parallel\dream world. Dream world is likley some kind of postapoclyptic setting. There were a boy in a wheelchair and a girl, i think they were the antagonists, in parallel world they commanded some kind of army or gang which chased protagonists.
Is it The Odyssey?