LET ME TELL YOU SOMETHING... A DESTRUCTIVE SPECIES IS OUT THERE... CAPABLE OF DESTROYING ALL LIFE... YOU CAN'T STOP THEM NO MATTER HOW MANY YOU KILL... AND THEY ARE ON AN ACTIVE CAMPAIGN TO OBLITERATE EVERYTHING THAT EVER EXISTED, INCLUDING THEMSELVES... NO LIFE WILL BE LEFT ONE THEY HAVE FINISHED THEIR OBJECTIVE... WHO OR WHAT ARE THEY, YOU ASK...? LOOK AROUND YOU... HUMANS.