Join Monkey D. Luffy and his swashbuckling crew in their search for the ultimate treasure, One Piece! As a child, Monkey D. Luffy dreamed of becoming King of the Pirates. But his life changed when he accidentally gained the power to stretch like rubber... at the cost of never being able to swim again! Years, later, Luffy sets off in search of the "One Piece, " said to be the greatest treasure in the world... The Straw Hats' flag floats on the water... Have they fallen at last to the relentless assault of Big Mom's deadly pirates?! Or can they escape and finally make their way to the mysterious country of Wano? Meanwhile, the world's leaders assemble for the Reverie. What is the world government plotting?