(This story is a sequel both to Batmare Triumphant and Dragon of Steel II. Familarity with both works and their universes is highly recommended. Dedicated to the legacy of both Adam West (1928-2017) and Kevin Conroy (1955-2022), also dedicated in memory of Akira Toriyama (1955-2024). Loosely based on "World's Finest" from Superman: The Animated Series.)

Prepare yourselves for an out of this world crossover event between two caped crusaders' from separate universes: Batmare, the dark knight. And Super Dragon, the dragon of steel. Watch what happens when their universes are merged together by an unlikely chain of events!

Batmare finds herself hot on the trail of Starlight Glimmer, a pony who has stolen a scroll capable of time travel and with ties to a criminal organization known only as The League of Assassins. Meanwhile, Super Dragon and Twilight are preparing to explore other universes through the use of a special machine and spell Twilight perfected.

As a result of magical imbalances and combinations, the two universes are merged into one, and Super Dragon and Batmare soon find themselves learning of the other's existence. Naturally, circumstances eventually cause the two to meet face to face, as they must figure out how to restore the balance before the entire multiverse is irreperably altered!

But while our heroes try to get their bearings and make plans, events are set into motion that will test the mettle of both heroes. An unknown benefactor arranges for The Joker's escape, and upon his release the clown prince sets his sights not on Batmare but on Super Dragon, plotting a scheme designed to get the dragon's attention by any means necessary.