The series has an interesting premise -- King Varian is faced with the same force that destroyed Stormwind under his father's rule and he's desperately trying to figure out how he can beat what his father couldn't. Vindicator Maraad faced them on his Draenor, so he has the dirt on each of the warlords. We get the story from him. I'm not sure how well that works when we're dealing with an alternate Draenor, but it makes for some well-animated storytelling, I'll tell you that much.
So head on over and watch episode one of Lords of War and get ready for the remaining episodes.