A surprise attack by the Sora-nin, a group of ninja from the Sky Country, targets Konoha, seeking revenge for the devastation inflicted by Konoha during the last Shinobi World War.
Naruto Shippuden: The Movie - Bonds
A group of ninjas from the Sky Country, known as the Sora-nin, launch a surprise assault on Konoha, seeking revenge for the devastation inflicted on their homeland during the last Shinobi World War.