After returning Goodra to its home, our heroes are suddenly confronted by a giant creeping vine—just like the ones Team Flare unleashed on Lumiose City! The scientist Xerosic is trying to continue Lysandre’s work, and he even turns a mind-control beam on Clemont! But Clemont is too clever for that—a secret invention rescues him, and Xerosic is arrested. When another vine attacks our heroes, Squishy and Zygarde come to the rescue…with a difficult request. Ash’s Greninja is able to sense the energy feeding the vines, and Squishy needs its help to stop them. With Ash’s encouragement, Greninja agrees, and joins Squishy to help protect the Kalos region! (thetvdb.com)