Chapter 561: Battle Royal The Crew vs. the New Fishman Pirates!

Luffy along with the three princes try to protect Shirahoshi against Hody Jones, the captain of the New Fishman Pirates, focused on killing the Mermaid Princess but seems to have an ulterior motive as Vander Decken IX is slowly losing consciousness and his grip on his Devil Fruit powers that keeps the massive ship Noah from falling on top of Fishman Island and its occupants therefore killing them is weakening.

Meanwhile the other Straw Hat Pirates face off against the New Fishman Pirates officers who are equally eager to finish their opponents off as everyone prepares for the fight once again as the fate of the people of Fishman Island rests on Luffy's hands and his crew. As Luffy and the siblings deal with Hody, Decken falls after trying to throw his axe and passes out and the Noah starts falling to Fishman Island. Source: http://onepiece.wikia.com/wiki/Episode_561