Big Mom rampages through the Whole Cake Island in search for sweets - but when the kitchen can`t prepare them fast enough her own son steps in to curb the carnage, with deadly results. Only an old face coming across the waters brings Mom what she needs, even though he also brings ill tidings.

Brook and Pedro head out in a submersible to infiltrate Big Mom`s stronghold! Meanwhile Luffy, Nami, Chopper and Carrot head into the island chasing the image of Sanji, only to be distracted by the endless supply of sweets and a second Luffy!