Apocalypse Within The System [OM&M, AA, BMTH, PTV]

Rachelle and Blake are stuck in an apocalypse. There's a spreading epidemic caused by an indestructible bug, killing everyone. After losing her fiance, Blake finds herself traveling through the apocalypse with her one and only high school enemy, Alan Ashby. They think that they're the last two people on Earth. After losing her husband, Rachelle ends up running through the apocalypse with the one man she absolutely despises, Danny Worsnop. They think they're the last two people on Earth. They will meet many people on their journey through the apocalypse, and they will lose many people as well. Will they ever get out of the apocalypse within the system?