A police dog named Hua Shao came to Organ Island, known as the "Dubai of China". The naughty dog caused a lot of trouble on the island and was punished by "staying on the island for observation". Liang Yue, a young dog trainer, is well aware of Hua Shao's excellent talents and potential, and was temporarily transferred to the island to assist with the dog. With the help of his colleague He Mumian, Liang Yue successfully helped Hua Shao to correct his various problems. He not only played an irreplaceable role in public security prevention and neighborhood mediation, but also showed his skills in the detection of various cases and became a community star. Liang Yue was stabbed by a drug addict's needle during an operation, which triggered a storm of AIDS suspicion. He Mumian and Hua Shao never left him. Hua Shao was injured on duty and faced retirement. Liang Yue and He Mumian stood by him through thick and thin. In the end, Hua Shao recovered and returned to the police force. The two people and one dog worked silently to keep the peace in their ordinary and sacred positions.