Cody is a 13 year-old that has a troubled past…
His alter ego Brandon was the main cause of his "Troubled Past"
However Cody is tired of it…So he lets him out.
With evil intentions….

See Cody had been having real problems with his life in general…
He has resorted to Pot but it didn't seem to help.
Cody does communicate with his Evil self. It convinces him to let the creature out….

He travels to Equestria where he meets a certain pony…That will help him with Brandon….