Orec Of Orgrimmar, Hero Of Azeroth saved Azeroth from the banner with his friends. But when the banner portal opens in Equestria, Orec has to go there and stop him again. Before there is nothing left anymore to protect.

(WARNING IF YOU DON'T KNOW WHO ANYONE IS HERE ARE SOME LINKS AND STUFF FOR YOU)
Orec: http://clanoftheundead.wikia.com/wiki/Orec - The Main Character of the story.
Udoka: http://clanoftheundead.wikia.com/wiki/Udoka - Friend of Orec. Helped Orec save Azeroth
Peko: The Last Guardian, Friend Of Orec.
Viznik Goldgrubber: A Greedy goblin that lives in Booty Bay.
Rickle Goldgrubber: The Not So Smart family member of Viznik Goldgrubber.
Baelog: A Drunk Dwarf that drinks his special beer called Sausje.
Pooki: Once a General of the Banner Army now friend of Orec and Udoka.
Binzik Goldbook: A Goblin that wants to give you a EVIL contract.
Revilgaz: Baron of Booty Bay
The Banner: The EVIL, there isn't much info about him, but he will destroy your world.