In a dark place named Tartarus, a subterranean hellscape between worlds, humans and ponies are paired together at random to survive a gauntlet of horrible monstrocities while the future of their realms hang in the balance.

Now, are you buying that? Good. Cuz I'm friggin' tired of having to explain it all on top of dragging this annoying-ass unicorn around the effing corridors of purgatory along with me. You'd think the damn, burning yahoos who run this place would give us rest stops to drown ourselves in beer or something. Friggin' A.

Oh, and some ponies and humans spill blood together and stuff. I dunno. Stop playing BattleDuty: Future Football and read this, or whatever. Like I give a crap...