When Black Cross and his brother, Hearts Dalliance woke up after they had the same dream about a warning - they later noticed that colorful ponies began to disappear after a spell have gone horribly wrong, summoning the Dark Kingdom bringing chaos among the living to rapture every pony. However, this spell does not effect ponies with gray and darker skin. Now the two brothers go on a quest to find answers and meet some new friends along the way only to discover their history about why ponies were born gray.

Some characters and story were based off from MachoPoni: A Prance With Death by Lotus Rose.