613 the prophet had been on many adventures with his best friend Avi, visiting new worlds, befriending the people there and offering them a place in the most amazing multi-universal community ever. Now, with the knowledge of Equestria's existence, the two friends travel to the pony-populated world, where they make new friends and discover new things. But, like before, something is out to stop them. A dark force, one which has been plaguing them since they met, has followed the prophet and his friend into Equestria. Their objective: disrupt 613's mission and proceed to strew entropy and destruction of every kind throughout Equestria.
With their new friends, new forms and new identities, Spirit and Fang are going to see if they have what it takes to protect what they care about most. Will the combined power of the two Republicans and the Mane Six be enough to repel the forces of darkness? Or will they have to tap into an old resource to help them out?