Franklin and Snail want to be heroes, just like their favourite book character, Dynaroo, the kangaroo superhero. They are thrilled when they discover that Dynaroo will be visiting Mr. Heron’s bookstore for a book signing, and the excited pair head out to meet their hero. But, on the way, Franklin and Snail stop to help a friend in need and discover that it doesn’t take super powers to make a superhero.