Retired navy soldier Zhang Haisheng returns to his hometown after sustaining battlefield injuries, only to face a divorce leaving him penniless and his daughter Zhang Xiaoman suffering from leukemia. By a twist of fate, he obtains a dragon-patterned jade pendant and acquires divine dragon power over the sea, striving desperately in gathering sea treasures to earn treatment fees. Through overcoming villainous framed plots and life-and-death crises at sea, he starts an aquatic products company, not only saving his daughter, but also leading the fishing village villagers to common prosperity, reaping sincere love, and completing his transformation from a down-and-out father to an industrial leader.