Gate of the Setting Sun

For generations, a massive wall called the Serpent's Spine has protected the denizens of Pandaria from periodic assaults by the rampaging, insect-like mantid. This brutal race's cycle of aggression recently began earlier than expected, catching the wall's defenders off guard. As the mightiest mantid warriors charge the battle-worn gates, Pandaria must hold back the most devastating army in the land's recorded history.