Unova's Survival Crisis!

The situation is getting tense. With Team Rocket having unleashed the Abyssal Temple and Ash, Meloetta and Pikachu captured by Giovanni, things truly get bad; Giovanni soon summons Tornadus, Thundurus and Landorus through the Reveal Glass and orders them to go on a rampage. It's up to Ash & Co. to stop Giovanni and the rest of Team Rocket from taking over Unova. Will they be up for the challenge, or will Giovanni succeed with his biggest plan yet?