Pokémon : S19 | E39 – A Towering Takeover!

Chaos erupts as Team Flare attacks Lumiose City with Z-2, who causes mass destruction while in its 50% Form. With Alain's ties to Team Flare revealed to Ash, he is forced to let Team Flare take Ash and his Pokémon captive through Lysandre orders but instantly regrets what he has done. Lysandre plans to use Ash and his Greninja Bond Phenomenon for his plans while using their friends, Ash other Pokémon, as hostages. When Alain went to go confront Lysandre about this he finds out what Team Flare's plans truly are, shocking him. Meanwhile, Squishy transforms into the 50% Form to battle Z-2, revealing its identity as Zygarde to the group. (Source: Wikipedia)