In the TV show Richie Rich, Richie is a boy genius who invents successful products that make him a trillionaire almost overnight. He uses his wealth to create a luxurious lifestyle for his family and friends, including a state-of-the-art mansion and private school. Despite his wealth, Richie remains grounded and uses his intelligence to solve problems and help others. His sister, Harper, is supportive of his success but struggles to find her own place in the family dynamic. Darcy and Murray are Richie's loyal friends who support him through all of his adventures. Throughout the series, Richie navigates the challenges of being a young billionaire, including dealing with jealous competitors and learning to balance his business ventures with his personal life. Along the way, he discovers the true value of friendship and family.