Twilight Sparkle sacrifices her newly-acquired Alicorn status to save Equestria from a multiversal cataclysm. The disaster has been averted, and all is well again...

Or is it?

What nopony realizes is that the multiverse's barriers were broken enough to let somebody from a different universe be transported to a world not of their own. How will they handle being in this new universe?

Meanwhile, a variant of the Web-Slingers is caught up on what happened and decides to do a field test on his newest multiverse-traversing gadget. What will happen when he visits a place called Ponyland?

For both? You'll see.

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