Equestria is under siege, and yet nopony is any the wiser. Ponies from all over are going missing, and it's up to Princess Luna and the Mane Six to find them. However, that becomes the least of their problems when Twilight and company find a strange machine in the Everfree Forest, leaving the Princess of the Night with more questions than answers, and the threat of an unknown enemy lurking in the shadows. Things get even more complex when several more machines seem to materialize out of thin air, only for her to discover that they are not all that they seem.
Follow her adventure as Luna interacts with titans from another world, and discovers what it truly means to be a living machine, where battles are not fought with magic and swords, but blasters and armored fists.