One Piece Season 17 Episode 727
A Massive Counterattack! Doflamingo's Awakening!
The Birdcage continues its merciless constriction, sending the residents of Dressrosa fleeing towards the center of the island, while King Riku calls out to his people: Survive long enough for Luffy to vanquish the last of the royal family - Doflamingo himself!