Lin Haoran, the captain of the criminal case investigation team, and his comrades-in-arms were ordered to bring drug lords to justice. They fought with drug lords with the fearless spirit of sacrifice and high-tech means, found clues from clues, and were not afraid of difficulties. They solved the largest drug-making smuggling case in Haizhou City since the founding of the People's Republic of China, and returned the blue sea and the blue sky.