Rainbow Dash runs into a weird looking human with an assortment of weapons, a thirst for blood, and a strong alcohol addiction.

The Mane 6 defeats Discord, and just before he was turned back into stone by the Elements of Harmony, he released a curse upon Equestria as one final attempt to bring chaos. He won’t go down without having the last laugh.

A group of superheroes finds a mysterious portal and out of curiosity, they jump through and enter Equestria.