[Remake] Its not everyday you wake up to what sounds like someone ripping a neutron star in half. Whatever that'd sound like. I'm hesitant to tell you what happens here, but nevertheless will do so if you are keen in listening well.
The Crystal Empire has returned, along with its tyrant, King Sombra. It is up to Twilight to save the Crystal Empire, and she does exactly what is expected.
After dying from a backfiring spell, Twilight Sparkle and Starlight Glimmer were mistakenly summoned to Hell. One of them REALLY made the best of it, to Discord's shock and Devil's dismay.
King Sombra is left with an ultimatum from Princess Celestia between reformation and being turned to stone after he's found in the Frozen North, and subsequently imprisoned in Canterlot. His reformer doesn't help things either...
The Doctor seeks a way to communicate with the TARDIS, but it backfires horribly. With the biggest heroes in the world trapped in a mental prison, it falls to the reassembled CMC to save all of time.
A human with no knowledge of the MLP Franchise gets displaced into the world of magical talking ponies. To sweeten the deal he is effectively turned into an RPG character.