In the south of Equestria, a meteorite fell, containing a deadly green crystal. But then, a sign appeared in the sky, heralding the impending end of the world, foretold in such an ancient prophecy that even Celestia and Luna had forgotten about it…

When the whole world was overrun by hordes of the undead, all hope rested on the farmerpony, her human friend, and their magical garden filled with extraordinary plants – powerful and stalwart!..