"It's a blazing summer when two men arrive in a small village in the West of Ireland. One of them is coming home. Both of them are coming to get rich. One of them is coming to die. Cal Hooper took early retirement from Chicago PD and moved to rural Ireland looking for peace. He's found it, more or less: he's built a relationship with a local woman, Lena, and he's gradually turning Trey Reddy from a half-feral teenager into a good kid going good places....

With the fight at Dress Rosa behind them, the Straw Hats are enjoying a leisurely day at sea, that is, until the mysterious Olga boards their ship demanding a hot meal. She may seem cute on the outside, but this sharp-tongued firecracker of a girl just happens to hold the secret to an ancient lost city and a treasure rumored to be the most valuable metal in the world.

Craig, a new kid in town, journeys into the nearby creek to find a lost treasure, and winds up being pursued by a band of pirates who want to destroy the Creek itself.