Despite Jellal's attempts to end everything with his death, Brain takes control of Nirvana and activates its second stage - an ancient city that begins marching at his order towards Cait Shelter. Natsu, Lucy, Happy, and Gray rush off to defeat it. When Natsu and Happy try to get ahead, they are forced into an aerial battle against Cobra. Meanwhile, Erza saves Jellal and convinces him to live for the future, and they begin to devise a plan to destroy Nirvana.