Join Monkey D. Luffy and his swashbuckling crew in their search for the ultimate treasure, One Piece!The Straw Hats have infiltrated the Tower of Law to save Robin, but they still need a special key to release her. One of the CP9 assassins holds the right key, but Luffy and his crew may have to defeat them all. Can the Straw Hats thwart CP9 and rescue Robin?The Straw Hats have infiltrated the Tower of Law to save Robin, but they still need a special key to release her. One of the CP9 assassins holds the right key, but Luffy and his crew may have to defeat them all. Can the Straw Hats thwart CP9 and rescue Robin?