Tirek has called a wide summoning of otherworldly creatures, bipedal figures that seem to pilot mechanical monsters called Robots. Celestia had encountered first-hand, the wrath of Tirek and his army from another world. In a desperate grasp for hope, she and Luna called forth an entity that can protect them from this unknown enemy. With one fatal mistake, the princesses called upon something else as they called forth no entity, but a group of bipedal creatures... Transformed into ponies! With a coincidental hope, these human-turned-ponies were from the same world as Tirek's otherworldly allies and have the power, ability and knowledge of their robots imbued into their own pony bodies. Can the Mane 6, the Captain of the Royal Guard and his Lieutenant and the otherworldly heroes work together and save the lands?

Note: This story takes place after Twilight's Kingdom. The robot series known in this story are the robot series that were in the game Super Robot Taisen J:

Blue Comet SPT Layzner

Brain Powerd

Dancougar-Super Beast Machine God

Full Metal Panic!

Mobile Fighter G Gundam

Mobile Suit Gundam SEED

Hades Project Zeorymer

Martian Successor Nadesico

Mazinger

Robot Romance Trilogy (Only Combattler V and Voltes V)

Tekkaman Blade

And of course, the Banpresto Originals!!!