Harley embarks on an exciting zoo adventure with her fun Grandma Teri and amazing, food-loving Papa, armed with a sparkly, hand-drawn map of 'magical spots.' While exploring, she uncovers a shimmering stone and a luminous feather, leading her to discover delicate, sparkling hoofprints by a hidden spring. Believing these are from a unicorn named Uni, Harley's grandparents help her understand that true magic lies in belief and imagination. Together, they leave Uni a special gift, reinforcing Harley's conviction that some wonders are meant to be felt with the heart, securing a secret garden of belief and imagination.