Five-year-old adorable baby Lu Yuanyuan was sent away by her heartless relatives after her mother passed away. With extraordinary courage, she sets out alone on a journey to find her father. Yuanyuan was born with a special gift: not only can she identify bad people by their smell, she is also skilled in medicine. After traveling a thousand miles to the provincial capital, with Yuanyuan's help, Dean Ma successfully wakes her father, Lu Changfeng, who had fallen into a coma while carrying out a mission! The father and daughter's reunion moves everyone to tears. After returning to her warm, big family, the little adorable baby teams up with her little friends to cleverly catch the hidden mastermind and uncover the secret behind it all!