It's every grom's worst nightmare. For days, the ocean is flat! The groms can't surf and they're going crazy. Appeals to the surf god go unanswered, and it looks like the groms may actually have to find… other things to do! Meanwhile, Lo is stoked when her dad has a change of heart and lets her back in the penthouse. But will her princess lifestyle alienate Lo from her friends? Then Fin discovers that someone killed the surf: Captain Ron has built a chain of artificial golf resort islands offshore! Can the groms stop Captain Ron and bring back the waves?