In 1983, Li Jianhua, a man who makes his living gathering seafood along the shore, gets a second chance at life after reaching rock bottom. Gifted with an extraordinary ability to sense the tides, he repeatedly discovers rare treasures in tidal flats and the deep sea. From a gambling addict drowning in debt, he gradually becomes a trusted leader in his village. Facing blockades and oppression from powerful forces, he fights alongside his wife, Lin Yue'e, unites the villagers into an alliance, and uses honesty and ingenuity to open up new markets and establish the Tide Line brand. Through countless storms and struggles, he pays the price of losing his eyesight, but wins back the smiles of his wife and daughter and restores hope to the entire village. This is a story of rebirth, perseverance, and protection—true happiness lies not in what the eyes can see, but in what the heart can feel.