All Spike has ever wanted was to live a peaceful life with Rarity and the others. Not more adventure, no excitement, just a normal life surrounded by the ponies he cares for, and for a while he has that. That changed however, when a mysterious man calling himself "Testament" appears, and brings with him news of creatures called "Gnosis" on their way to Equestria. When the man proves to be truthful, a series of unfortunate events put Spike in the possession of a strange weapon called the Xenosaber, which seems to be able to defeat the Gnosis.

Now with the help of his new friends Jr., and chaos, Spike will embark on an incredible journey through the U.M.N., seeking new worlds in the hopes of destroying the Gnosis, saving his friends, and bringing his world back from the depths of nothingness. But how far is Spike willing to go to rescue his friends? Will his friends STILL be his friends in the end?

And if he has to choose between the fate of the universe, or the fate of the one he loves, will he make the right choice?