Magnificent Dogs follows two celebrities, Lee Kyung-kyu and Lee Yoo-bi, as they learn and train to be dog trainers. Kyung-kyu is famous for raising several pets for years, while Yoo-bi has never taken care of pets. The two are trained by Kang Hyung-wook, Korea's best dog trainer. They are very eager but realize slowly that adoring pets and training pets are very different. Can they succeed in becoming a competent dog trainer? The show covers the two celebs' daily lives and training while exploring the best way for people and pets to live in harmony.