While everyone is focused on the last event at the Grand Magic Games, Team Natsu slips into the palace to try to spring the imprisoned Lucy. Meanwhile, Mavis, the progenitor of Fairy Tail, uses wartime strategy in a bid to lead her team to victory!

The true menace of the opened Eclipse portal becomes clear as one dragon after another lumbers through, intent on murdering everyone. Only a Celestial Spirit wizard can close the portal, but will Lucy be able to do it before all 10,000 dragons enter the world from 400 years in the past?!

As several wizards across Crocus are cornered and killed by the dragons, Ultear recalls her forbidden Last Ages spell, which is capable of reversing time at the cost of the user's life. After deciding to atone for for her lifelong misdeeds, she casts the spell in an attempt to avoid the dragons' arrival in the present. Afterward, she discovers that only one minute has been reversed and collapses. As a result of her spell, however, the wizards are able to foresee and prevent their own deaths, including Gray's. Lucy reunites with her friends at Eclipse and reveals that, according to her future self's notebook, they can return Future Rogue and the dragons to their respective time periods by destroying Eclipse once and for all.