When Nami the Navigator is stricken by a mysterious illness, Luffy and his mates seek medical attention on a frosty island where the locals don't take kindly to pirate trespassers. Their only hope is finding a doctor - human or animal - that can save Nami and get them back on their way to Alabasta!

Showdowns with angry assassins and a cigar-chomping marine captain loom on the horizon, but there may yet be hope for the Straw Hats. A fiery ally from the rubber-man's past is ready to lend a hand as Luffy and company fight to restore peace to Princess Vivi's beloved desert kingdom!