Tinny is a puppy who becomes attached to a balloon and floats into the sky. He ascends above the clouds into a realm called the "Balloon Kingdom," populated by unique animals similarly born with or attached to balloons. These animals become his companions as they explore this unknown environment together, with their shared adventures forming the core of his experiences.

Tinny and his balloon-animal friends venture into new, unfamiliar territories within the clouds. This journey includes exploring a "somewhat mysterious country of dinosaurs," significantly expanding his world through encounters with prehistoric creatures in this cloud-based kingdom.

Tinny's story originates from a picture book series. The narrative consistently centers on exploration and discovery within fantastical cloud-based environments alongside his group of friends. His background is defined by the initial event of being carried aloft by the balloon, leading directly to his ongoing life and adventures in the aerial "Balloon Kingdom."