The search for the magical keys, all part of the ONE KEY that will ensure everyone's happiness, continues. After finding the first key in an abandoned temple, the young boy Ti and his friend, a 95-year-old sea turtle, must escape Kukulkan, the god of the wind who wants to steal it. While trying to solve the riddle that will lead them to the second hidden key, Ti and the turtle encounter many dangers and delightful friends. Meanwhile, Kukulkan is plotting to have all the keys in his possession in order to become the most powerful and dangerous god of all.