i don't remember where it began. soon, it was everywhere. many who showed symptoms were dead in days, others mutating into horrifying beasts. they were quarantined in a dome that encased ponyville. the death dome. and now, the virus has created the behemoths. our only hope now is to kill the beasts and cleanse ponyville of the infection, so the dome can die.
this is based off the game 'death dome'