A bright flash in the summer sky turns a perfect beach vacation into a frantic rescue mission. The Peterson family is thrilled to spend the Fourth of July weekend relaxing by the ocean, but the loud booms of a festive fireworks display change everything. The noise completely terrifies Liberty, a beautiful golden retriever puppy, causing her to bolt into the night and lose her family. Charles and Lizzie cannot just sit back and watch a dog in distress, so they immediately jump into action to help. You will feel the suspense as the siblings pause their holiday fun to track down clues and search the crowded beach town for the frightened pup. The Petersons usually foster dogs in their own home, but this time they must solve a mystery on the road. You will be cheering for Charles and Lizzie as they navigate the busy summer crowds to reunite this sweet golden retriever with her worried owners.