Lin Polang, a down-and-out fisherman looked down upon by everyone, has spent seven years mastering coastal fishing. He has long since figured out the patterns of ocean currents and water temperatures, developing his own precise fishing techniques. Everyone thinks he can only catch worthless small fish, but little do they know that he can pinpoint schools of fish and successfully catch bluefin tuna, a species long thought to have disappeared from nearby waters. Shen Qinglan, a major seafood buyer, purchases his entire catch at a premium, paying in full and earning him a staggering 300,000 yuan. His extraordinary abilities shake the entire fishing port, attracting the jealousy and suppression of rival fishermen while also bringing him opportunities for top-tier business partnerships.