Ten years after fleeing home, Nina Lejeune is the chief stewardess on the super yacht Serendipity, single by choice, and perfectly content. But Nina's old flame, Irish chef Ollie Dunne, isn't so happy with the status quo. One year after leaving yachting, he's returned as the Serendipity's chef with an ultimatum: if Nina continues to deny she's in love with him by the end of this charter season, he'll go back to Ireland for good. Nina and Ollie's shared secret from their past threatens to shipwreck not only their relationship, but the entire boat.