Ten years ago, Libby Grant and Drew Muldoon dated for six months. Despite a string of disasters, they became engaged - then Libby broke up by letter while Drew was at sea. Now on a leisure cruise around Spain and Italy, she discovers to her horror that Drew is the captain of the ship. Can they work through their past problems and rekindle the spark and hope of their old relationship? Or will the mysterious thefts and hacking incidents on board the ship throw a serious spanner in the works?