Ryan is the younger brother of a triplet. His sisters Sydney and Sabrina share many characteristics while Ryan does not look like the same. Being confused with his identity, Ryan goes to find scientist Dr. Lui with his sisters. By completing the missions assigned by Dr. Lui, the triplet learn about the structure of DNA and it’s hereditary function, as well as how traits are passed from generations to generations. With the information and clues provided by Dr. Lui, the mysterious identity of Ryan is finally unraveled.