The story takes places after the banishment of Nightmare Moon, problems started not long after its banishment, war and caos started to spread and Princess Celestia was the most affected by this, during its rule the Princess became cold and harsh to everypony, the ponys keep complaining about nightmares, and the princess cant find a solution, she was never good whit the dream walking spell, so she started to call all the unicorns around the kingdomn, she started to evaluate them, but whitout succes, none of them seemed capable of using "Dream walking Spell", but not far away, there where three orphans, one of them, a unicorn by the name of Sleep Knight, the other was and Earth pony, by the name of Nightmare Shield, the third one was a Pegasus, Dream Walker, this three brothers, yet not by blood, dont know what the future got planned from them,,,,